2.5 Talk: Some Do's & Dont's, Mods, Tunes etc

[@papilongneck5995]

Finally a video on tips for modding the 2.5 🙏

[@Fendijett]

Been searching

[@timc8551]

I know this video is a bit older but it is well put together and hits great key point. I like that it has personal experience and also factual. Definitely compulsory for anyone looking to modify these.

[@rabity]

4:23 - Fuel System 5:15 - Spark Plug (NGK) 6:14 - Oil Filter/Fuel Filter (MANN) 8:39 - Oil (5W-40/0W-40) 9:36 - Gear Oil 10:11 - Dont do BurnOUTS KIDS! 10:45 - Dog Bone mount 12:18 - Dont slam ye car m8! slam it ;) 12:58 - Axle Binding 14:18 - Short Shifter 19:03 - Intake Manifold (IE)

[@SubsurfacePodcast]

Awesome breakdown of the timeline! Maybe i should have done that lol.

[@pAirA_]

@@SubsurfacePodcast hey man, if you add this to your description and add 00:00 - Intro at the top, it'll integrate the timebar of your video

[@TheInfoDeskOfficial]

Key video for alot of us 2.5 guys thanks fir this

[@davemarchese1850]

The MKV God strikes again 🤙🏻

[@Thierrydsm]

the 2.5 god strikes again*

[@toddwilliams9681]

YOU DROPPED MAD KNOWLEDGE!!!!!! GOOD LOOKING

[@HarcourtBullV]

Budget turbo build! I have a mk6 Jetta 2.5 5 spd great videos keep up the good work

[@alexplay3]

I finally know what was the clunking sound when I put my Jetta in reverse, I thought it was something more serious.

[@thomasjohannesen1003]

you will never understand how helpful this is. years of googling have not shown what this single video has

[@SubsurfacePodcast]

Thanks man. I could do better too. Just time restraints

[@seanreynolds9906]

I drive a 2.5 beetle and literally all of this still applies... I blew the differential and a have trashed that dog bone motor mount 3 times...

[@noblevengeance312]

Just finished watching this whole video. Thanks for all the info you know a lot about this motor. Very well done

[@miguelsanchez6465]

cool video, the na 07k in the mk 5 and mk6 was detuned so much from factory so it did not compete with the gti. lots of potential

[@Unaether]

Thanks cool video. Love the sound and performance of the 2.5. Daily drivers, a MK5 Jetta 2.5, MK5 Rabbit 2.5 and now a 2017 Passat R Line family car lol XD

[@splatbubble]

15:46 that is extremely interesting. I've noticed when I am revving my engine out hard (I have Integrated Engineering Manifold and Stage 2) it occasionally feels EXACTLY like I am hitting a wall. No grinding, no sticky, just BONK. Only 2nd to 3rd. I had attributed this to the shift lever assembly needing some lubrication. I did that, and it helped (I think) but now I am going to look into lighter flywheels, thanks!

[@kenalfred7242]

Had a 07 Jetta 2.5 and I looking to back into one maybe a 10. Good info thanks.

[@jeffyoung1361]

The most informative video I've ever seen. Kudos!

[@SubsurfacePodcast]

Thanks man

[@jeffyoung1361]

I meant every word

[@SubsurfacePodcast]

@@jeffyoung1361 Thats what I was going for. Some 2.5 owners were telling me they couldnt find videos talking about X Y and Z so I made one to the best of my ability.

[@aznerol0770]

Great, informative video! I have an '09 rabbit that I've started to modify. I started with addressing all of the suspension issues since it just went over 200k. I have a stage 1 IE tune and will likely go stage 2 before long. Thanks for all the good information.

[@SubsurfacePodcast]

Thank you man!

[@flakietrends]

i got 2.5L 2007 jetta with tune and other stuff

[@joes.7536]

That's crazy about compression loss. I have a aeb 1.8t with 165k miles. It has been on a reflect 18 psi tune 93 octane tune for 70k miles. Just checked it last summer and it still had full compression. 177+ on all 4. And I drive it like I stole it.

[@carlospacheco8640]

My BFI Engine mount snapped in half after 3yrs. Now I run BSH. I also removed my underdrive pulley due to electrical issues (If u have an audio system, do not use a lightweight or underdrive pulley). Lights would flicker when stopping and taking off slow (This would happen even while the system was off).

[@kneuenhaus]

Good information in this! I skipped a bunch because it was either irrelevant, or I already knew similar info, but the vacuum pump leak and differential I learned about maybe an hour prior to watching this. So that was helpful. The body roll in these cars sucks, I’m hoping to do poly bushings soon. I think it would help some folks here that aren’t as well versed in this yet if you posted some links to parts sources. ECS, Urotuning, ShopDAP, etc. I do appreciate the time you took to make this video though. I think my next move will be the R8 coils, I’ve read good reviews lately of their reliability. Cheers from NJ!

[@Alkatross]

This was so helpful... wish I had known about this. Both my headliner and AC control valve have been replaced

[@HP-mx6jb]

Great tips. I am going to do the vacuum pump delete on my daughters 2010 2.5 beetle from Spulen this weekend hopefully. If it all goes well I am going to do it on my 2012 vw beetle 2.5.

[@utubeman66]

How did the Spulen swap out go? Did you notice any difference on brake performance, or accelaration? Thanks!

[@HP-mx6jb]

@@utubeman66 I did it on my daughters car. Everything felt the same. The stock engine cover didn't fit afterwards but no more engine oil leaks.

[@mrbosky710]

@26:49 I always wondered what that ticking was. never considered it being the fuel injectors but that makes total sense

[@2enti]

Matt is the man with the jetta plan👍🏽 bro I dont think u know how bad we need some advice about the mk5. No one else on youtube has advice for this setup

[@2enti]

Please Check me out guys. Im new and i need mentorship and advice. Thanks matt for the motivation.🙏🇨🇦 kzbin.info/www/bejne/h4Clg2OBndudbas

[@SubsurfacePodcast]

What kind of advice should i put in a video?

[@LimandoCarter]

Good vídeo, 👋👋👋 in 🇦🇷🇦🇷🇦🇷🇦🇷🇦🇷

[@everettblue146]

really appreciate the vid, been trying to find direction with my rabbit

[@vkinglibra2142]

Got a 2.5 golf. Just did a magnaflow muffler exhaust, k&n custom intake, its a beautiful engine sounds almost like a v6.

[@utubeman66]

@@vkinglibra2142 Just wondering if you noticed any more low - end torque

[@utubeman66]

@@vkinglibra2142 does your car have more power, or just mostly a better sound?

[@alessiocoto4829]

My automatic was reliable beat on it and got good mpg never did fluids since dealer told me not too but was still solid.

[@kdhhofr]

Just found this video and it helped a lot 💯🤞🏽 appreciate the knowledge bro

[@SnobbyBoyColby]

Thank you for all the insight. Im slowly piecing my MKV together. Haven't done a build since 2005, when I had a MKIII Jetta VR6. I made the mistake of buying all the high priced upgrades for it. Looking back on it now, only because I wanted to sound like a BA. At the time, I was an 18 y.o. living off I-Drive and Westwood with too much $$$ and none of my VW mechanic homies to stop me. Which, sadly, turned into $13k in performance and body parts doing a barrel roll on a country road, in NW VA. So I want to do this correctly, this go round. This is a good POR. I have 170k on the engine. I want to replace all the gaskets and belts and do the suspension work first before adding power. Would you say that's a good route? Im currently using ECS adjustable coil overs. I have intentions on upgrading. But with all the different brands out there. Which are you using and what brands do you suggest. Ksport, Bilstein, FK, KW and Koni are ones i'm familiar with. Open to any suggestions you have. Ive also wondered about superchargers. Ive only seen 1 person post a video that has done it. But was more so showcasing the BFI motor mounts. Do you have any knowledge on supercharging the 2.5? or should I think about a engine swap to the 3.2 or 3.6 for that kind of upgrade? Thanks again for taking the time to make this video. look forward to hearing back.

[@vwdubpower4097]

Great vid Matt 👍🏾👍🏾

[@buffalobill2965]

a lower octane doesnt mean its dirtier or lower quality gas. just use top tier gas like you mentioned.

[@halleffect1]

octane has nothing to do with detergent level but people still think this

[@alessandroscott7889]

'10 Golf Mark 6 owner here. Thanks for the super informative video! I Inherited my car from a coworker of mine who was a spirited driver while he owned it. Despite the rough and tumble, the car itself is an fantastic condition and the engine has not given me any cause for concern. At 130,000 I've only had to do a vacuum pump delete to account for the OEM part dumping oil, but everything else is holding up great. Will probably do a water pump soon to account for the relatively minor coolant weep. Any advice on best part to hold off on any future leaks?

[@collywoodstudiosanimation3003]

Hey, i know this video is quite old at this point. But i just want to say, great video, and good coverage of topics. I drive an 09 rabbit (5 speed), and i had some of the issues listed. I only have mine slightly modified (stage 1 ie tune, exhaust, etc.), but love how it handles. I had no idea the 5 speeds had diff issues commonly. Mine blew a little while ago and cost me a transmission out of nowhere. Annoyingly there was only one in all of Canada and the US. Cost me $1500 😬, then the shop messed up and rolled the car out without axles, cost me new bearings... after all was said and done, bill came out to $2500. I love the car and how it sounds and drives, but man, i sure hope i dont have that issue again.

[@SubsurfacePodcast]

It may take some time but to future-proof yourself, you can source a 6 speed from a 2006-2007 GTI (and other required parts like clutch/flywheel, axles, starter, clutch line, cable end links etc) the 6 speed not only is way stronger and doesn't break, it has better gearing and helps with acceleration.

[@collywoodstudiosanimation3003]

@Florida07K yeah, right now I don't necessarily have the funds for it unfortunately. I will say though, the gearing in the rabbit is different from the golfs/jettas. Top speed in each gear Is quite low, meaning it accelerates a lot faster than the golf/jetta. I shift into 5th gear around 60 kmh (sorry for not using cheeseburgers/bald eagle), and my friend with a golf shifts into 5th around 80 kmh. But even then, he is at like 1.3k rpm if he does that, mine is up at 1.6-1.7k. When I'm going down the highway at about ~75 mph, I am sitting up at 3.2k rpm, based on my calculations, I am getting 17 mpg 50/50 city and highway 🤣.

[@SubsurfacePodcast]

@collywoodstudiosanimation3003 the biggest differences in the 5 speed to 6 speed is 3rd gear, and of course the lack of 6th gear. The 5th gear in the 5 speed is not good for highway MPGs unless you're going no more than 60 mph/97 kph. 6th gear on the interstate drops to around 2k rpm around 70 mph/113 kph. And the 3rd gear in the 6 speed is shorter than it is in the 5 speed trans, so if you are racing it and Rev out 2nd gear, shift into 3rd gear, the rpms won't drop near as much. The rpms stay in the power band. It's noticeably quicker.

[@thegoldenfox283]

I have a 2.5 2012 beetle. Any recommendations for and exhaust and probably an intake manifold with a tune? Worth it or just throw an exhaust?

[@SubsurfacePodcast]

Well it depends if your Beetle has Hydraulic power steering or electric. If hydraulic, an upgraded intake manifold won't clear the PS pump. In that case you can just get a UM tune, Injen intake, look for a USP catless downpipe or one with the highflow cat in it. If you have electric, Integrated Engineering has a kit with upgraded intake manifold, intake, their tune and that's good for an increase to around 40-45 hp.

[@friscostreetstories5403]

Yup. I pick my times to drive hard, all others I'm a slow driver. Rebuilt trans and 195k on a Mk4 r32. Never drive over 3000 rpm unless needed, I wait till shes up to temp. I stay poly free on everything it just doesn't last like a higher duro voidless rubber and nvh a street car a bit. I have all metal coolant flanges so that system is stronger and a skid plate for insurance. I still change my oil every 3 to 4k cause its inexpensive to do so, using VWs full synthetic and hoping the 3.2 will take me to 300k. I thought the 2.5 was turbo mate

[@betorocha6125]

Im pretty sure he said 10k mile oil changes? IMO I would recommend changing at 5k miles.

[@Zacharias3]

Can you use 205/60r16 vs the stock 55's on a 2010 Volkswagen Jetta SE?

[@SubsurfacePodcast]

Yeah but speedometer won't be accurate

[@Zacharias3]

@@SubsurfacePodcast Thank you. I'm now reading (after purchase sadly) that it can jack up your transmission and I am noting a fall-off in speed and burning more gas. I've only had them 72 hours - I think I will return. Best to be safe than sorry : (

[@stevenrobinson564]

Very informative video 👍🏾

[@serrsdaddy]

Could you expand on why the '09-'10 Mk6 Golfs are preferred? Why not the '11-up? Also, what are your thoughts on the Mk6 Jettas with the 2.5?

[@mk5slow173]

i'm slammed and luckily subframe is lower than oil pan also i haven't heard of the axle binding issue i'm lowered 4.5" in the front and haven't had issues yet

[@L0rdVadr]

Great video btw. Can’t tell you how thankful us owners are when you guys make information such as this available. Just a quick question. - I’m a second owner of a ‘14 JSW 2.5s 5 speed manual. Love the car. It’s a perfect daily. I don’t “plan” on modding the crap out of it. Just a few bolt ones to make it smile worthy on my commutes or weekend cruise or back road spirited driving. It currently has a Neuspeed c/a intake and soon BC Coils. I would like to do a cat back but am trying to avoid affecting any well working components while avoiding the dreaded DRONEEE!!! But would also like to bring a little music to the rear end as these 5cyl are known for. What’s your input. Thanks again. 🙏🏽

[@SubsurfacePodcast]

I would just do an AWE tuning touring edition catback. High quality, good look, good sound, no drone. When people start cutting out mufflers/resonators, and either straight piping it, or adding aftermarket mufflers but keeping the stock exhaust pipe in between, it causes alot of drone. In your case I would keep the stock header, downpipe/cat and resonator and just do a high quality catback. You'll be more than happy.

[@utubeman66]

I have an 09 Rabbit and I deleted the front of the 2 rear mufflers and it seems a bit more responsive on the low end, but it could just be the ole' butt dyno. I don't want to lose power so is there a muffler setup that is cat-back and gets me some nice sound and a bit more power? Does the AWE tuning touring edition setup affect the power at low end/high end. Thanks for the great videos.

[@jerylfrancis7094]

Hey do you mine just leaving a listing on parts for a N/A 2.5 05. Cuz I would like have direct connection to website parts n numbers. Also I know vw is just audi can I swag S3 or S4 parts into my 05 and which years have best compatibility

[@Kybob1328]

I blew a hole between my differential and clutch housing about 2 weeks ago. In KY these transmissions are nearly impossible to find

[@SubsurfacePodcast]

Damn. Happens to many 2.5 owners. You can usually source a 5 speed manual from a 2006+ MKV VW Jetta TDI. But you can also go deep and do a GTI 6 speed swap and don't worry about blowing up the trans anymore.

[@psiturbo]

Quick as possible, video is 31min long, 🤗! Many of these cars have replaced the Civic ricer movement. Bunch of kids buying them, stage 2, KO4, this that, and when shit hits the fan then they complain they are not reliable cars.

[@SubsurfacePodcast]

That's very true. I used to be active in the groups answering questions but I just can't do it anymore.

[@bendover3910]

hey bro nice jetta i got the same one same color too. can you make a video explaining the six speed swap? please

[@SubsurfacePodcast]

Not a bad idea. I'll try to make a short one on it.

[@andreysokolen95]

Thanks for the knowledge! I'm having an ongoing saga with a secondary air injection (SAI) system vacuum leak which throws an error code. It does not affect performance, but I don't like that light on my dash. Do you have any info on how to properly delete SAI and where I can do coding? Thanks in advance!

[@NB-ir1me]

I wish more videos of 2.5 were out there I can’t find ANYTHING but diesel videos and I’m about to buy a 2013 Jetta SportWagen 2.5 manual . Why is nobody making videos on the 5 cylinder :(

[@SubsurfacePodcast]

I dunno. But i am! Lol

[@NB-ir1me]

@@SubsurfacePodcast thanks man, just bought mine tonight 2013 2.5 s candy white w black interior, she’s amazing and would dust my 2016 10th gen civic I just sold in order to buy it lol

[@SubsurfacePodcast]

@@NB-ir1me lol. Nice man. Enjoy it!

[@NB-ir1me]

@@SubsurfacePodcast I’ve been driving it for a couple weeks now and love it! Definitely quicker than my 2016 civic 2L cvt lmfao, still slow asf though. Probably going to do intake, exhaust, tune, coil overs, 18s (it’s on Steelers w caps) and then tint lol

[@NB-ir1me]

@@SubsurfacePodcast bro please tell me where to get a 20v emblem I want to order a honeycomb grill for my mk6 jsw and it has a empty spot for the gli emblem, I want to put 20V instead

[@jameshadorn3242]

The IE intake manifold says it cannot be used with electric power steering. I am looking at an 09 rabbit four door with automatic transmission (wanted manual but I'm old with bad knees). Is there a VIN code or something that will tell me whether or not is has electric PS? Sorry about the dumb question, it's been awhile since I bought a VW.

[@SubsurfacePodcast]

That's not correct. All intake manifolds that are aftermarket work with electric power steering Volkswagens. They are not compatible with the Volkswagens that have hydraulic power steering. All MKV rabbits from 2006 to 2009 are electric power steering. They did not convert to hydraulic power steering until the 2011 Jetta and the 2010 Golf.

[@mikeywalter154]

Whats the fist thing I should do to my stock golf auto as in bolt on or is a tune ok with all stock internals

[@rawsondenna6329]

Message me on insta @dawson07k we have same car and we can talk about golfs

[@mikeywalter154]

@@rawsondenna6329 ok

[@Samuelsp579]

Where u get the grill and the badges from?

[@NB-ir1me]

Believe it’s stock actually

[@Samuelsp579]

@@NB-ir1me no it’s not, the 2.5l had a different grill

[@NB-ir1me]

@@Samuelsp579 it came off a stock car search comb VW grills

[@NB-ir1me]

@@Samuelsp579 it’s the GLI honey comb, part number 5C6853651ATCEE, He just took a 20v sticker over where gli was, you can see the remnants of an I still on the right if you look closer.

[@Samuelsp579]

@@NB-ir1me yeah, the grill is from a gli

[@imAbaraiRenji]

Hi from 🇵🇪

[@juvnchy]

Hi from penis

[@NickBuenoo]

Gear Oil 🎉

[@TinaTheBootyLover]

Great Info! I have a 08' Rabbit 4dr with a 5spd manual and I've only ever seen one other 4dr Rabbit in the 5 years I've had mine. I think they were not sold in the US or something, Mine came from Canada.

[@Its0kToBeWhite]

I have an 09' 4 door Rabbit 2.5 I just bought it a few months ago (I'm in Indiana) Only had 60k on the odometer

[@giltorres5310]

I want to swap my rabbit to a 6mt any suggestion in new on vw??

[@evilpanther990]

Do you recommend cat delete with Mk6 2.5 5mt it’s ie stage 1 cai red top coil, etc

[@SubsurfacePodcast]

Yes

[@natethemechanic9076]

08 Rabbit here. I bought the car used with 180k. Should i change out the timing chain as preventai e maintenance? Or was timi g issues sorted on the later 07k?

[@SubsurfacePodcast]

Timing was really only an issue on early 2007 models and most notably because people weren't used to VWs new (at the time) 10k mile oil change interval. No need to do timing on yours. Just keep up with the oil level, use quality synthetic 5w40 and use OEM oil filter and you won't have issues.

[@utubeman66]

Is it possible to get an IE stage 1 setup that can be changed to stock and back w/out having to reflash the ecu? On the IE website I didn't see any mods for the 2.5 non turbo. Is it possible that they dropped this upgrade.

[@TheBlackHeroDog]

very nice and instructive video! I have a question about intake. I have a 2010 Mk5 Jetta with 09G trans (here in Brazil we only have automatic transmission as OEM, now they're starting to swap with manual 5-speed gears from 8L A3 Turbo) and i'm thinking to modify my exhaust and intake system. I'm thinking to remove the middle muffler, not the resonator, and make a CAI. Do you have an idea how to make a good low budget homemade CAI? Things here are so expensive last months and so hard to find skilled labor

[@SubsurfacePodcast]

The intake can be a little complicated. It depends if your car has a mass airflow sensor or MAP sensor only. The plastic connections for the block breather and SAI (if you have it) aren't universal connections or sizes. So if you make an intake, nothing will connect as normal. There are ways to swap the plastic hoses for normal rubber hoses so you can attach them to a custom intake but money wise it adds up.

[@TheBlackHeroDog]

@@SubsurfacePodcast mine has map sensor. How hard is to change to rubber? Using rubber instead plastic will make the sensor crazy?

[@SubsurfacePodcast]

@@TheBlackHeroDog is your engine code a CBTA or CBUA

[@TheBlackHeroDog]

@@SubsurfacePodcast according to an sticker on the trunk it is a CCC engine with KGL gearbox

[@SubsurfacePodcast]

@@TheBlackHeroDog That's not accurate. You can find the engine code on a white stick with a barcode on the valve cover. You'll have to remove the engine cover.

[@rawsondenna6329]

What do you think of the AWE tuning exhaust for Golf/rabbit. You didn’t mention that one. I love it snd my friend has it I just got it but havnt put it on.

[@mattheworgan1826]

Stage 1 IE Jetta 2.5 2013 , what are things I should look at servicing?

[@simracinglou3142]

Sick shirt man!!

[@SubsurfacePodcast]

Thanks man. Love As I Lay Dying

[@christianrios6295]

Awesome shirt!

[@SubsurfacePodcast]

Thanks man. Big fan of As I Lay Dying since like 2006.

[@greatlakespowerstrokefx4]

Are you holding it full throttle on your compression test? 130 is really low, compared to a factory spec, thats equal to needing to be rebuilt. 5-7 psi is “low” on compression. 20 plus is shot. Throttle blade needs to be wide open in order to do a compression test

[@SubsurfacePodcast]

It was worn out for sure. But no. The VW throttle body is drive-by-wire and when cranking the engine, the plate is closed (open enough for idle speed) and the compression test is only going to see max pressure during compression strokes where the valves will be closed so the TB plate won't be relative.

[@greatlakespowerstrokefx4]

@@SubsurfacePodcast but the chambers wont be able to be filled with air with the restriction of the throttle blade. You arent getting an accurate result until the blade is wide open. Your engine is probably in alot getter shape than you think. 130psi is pretty respectable for only drawing through a closed blade. Same principle on which the engine works to start with, the throttle blade prevents the pressure of the atmosphere from filling the intake manifold. Thus is why your engine operates in vacuum, the engine demands more than the air it has available, creating vacuum. Anyway, nice car my bet is your engine is still pretty healthy.

[@chuongtrinh3852]

Hey man very helpful vid. I loaded my 5-speed tranny with GM Valvoline Synchromesh after you recommended it. Do you still think it's safe for the VW 5-speed? Afterward, I read the description on the bottle and it said the fluid only works with particular GM tranny.

[@ryanegot1170]

Plenty of people swear by synchromesh I’m not one of them as long as you drain 0A4 5 speed manual the right way and add in 2 quarts you’ll be good. Change interval is 60k miles and with synchromesh I’ve read half that, so 30k change it. Honestly I would just go oem part # G-070-726-A2 leave all the worry behind

[@chuongtrinh3852]

@@ryanegot1170 thanks a lot!

[@renbanhart.s]

Any one has an idea of how much does the turbo cost for the mk5 2.5???

[@isaacparrales6538]

the man states in the beginning of the video that to properly turbo your shit can run you 10k.... smoke a fatty and listen to what the man has to say

[@NickBuenoo]

Hey I’m considering my first modification to be a Tuning chip for my 2008 Rabbit 🐇.. Haven’t watched the vid yet but what do you think??

[@elyklenzak7695]

About the headliner. Once it starts falling out, what do you do to remedy it?

[@rawsondenna6329]

Get a new headliner

[@greysunlenser522]

You talk about upper strut mount bushings being worn out making a clicking. My 07 2.5l 5spd is making a noise like that in the front passenger side of the engine bay area. Mine goes away after I get into 2nd and 3rd and it is not every single time I drive the vehicle. Did getting new suspension fix that issue?

[@SubsurfacePodcast]

For me it did. Just test to see if it does it when your not moving at all and you turn the steering wheel left and right all the way. If so its the strut bearing (goes between upper mount and strut itself) but if it does it driving straight, not turning at all Its likely something else.

[@DavidDeLeon]

man i have a 2008 jetta sitting in my garage i gotta work on...thing's been sitting for over a year,

[@neoincognito4481]

Do they have an accessport compatible for these 2.5s?

[@SubsurfacePodcast]

No they dont

[@neoincognito4481]

How about software from a company? I have searched but this 2.5 is way diff than my 1.8 was, I could find parts dime a dozen from reputable companies. Unfortunately those companies dont exist or dont make a flash

[@neoincognito4481]

@@SubsurfacePodcast I want the throttle delay gone at the least.

[@neoincognito4481]

@@SubsurfacePodcast yo I'm dumb u already said untied motor sports I completely forgot

[@SubsurfacePodcast]

@@neoincognito4481 Its all good. United Motorsports is the go to software for these engines. Besides Integrated Engineering. Both are good for N/A applications but UM is the only way for boost unless you get standalone and know someone who TRULY knows how to tune with it.

[@MyJeremy79]

Hey my vw 2.5 keeps trowing code says engine coolant to low. It's a soft code cause light dnt cme on. I wouldn't worry about it but wen code is set the fan run all the time. Then I got to reset it.

[@SubsurfacePodcast]

That could be the coolant temp sensor going bad.

[@simpdestroyer1030]

The previous owner ran my car on 87 for years and my fuel pump and fuel filter had to get replaced am i able to switch to the gas i should be using without my engine throwing a check engine light and if so what gas do i use for my 2.5

[@SubsurfacePodcast]

I've used 87 on a few occasions but I used 93 octane 99% of the time over the course of almost 10 years with no CEL or issues

[@PappaDPrince]

Thanks much for this timely information! I wish this video was around 2 years ago when I invested in this mk6 2012 SEL! I would've bought the '10 lol but thank you much I've been beating up the internet in search of ways to fully enjoy the 2.5 the closest thing I can get back to my first love MK4 24v GLI R.I.P. the exhaust note on the 2.5 is quite similar to the VR6 so I guess you can say it's my new love. Only downer is its an auto and I'm looking into doing the 6sp manual swap. Would you have a recommendation as to which year 6spd would be best for the '12?

[@SubsurfacePodcast]

Most anything will be an upgrade over the 2012 gear ratios. But best is 2007 MKV GTI 6 speed. You'll be surprised how much quicker it feels with just a trans swap lol

[@PappaDPrince]

Nice much appreciated I'm looking forward to see what the 2.5 feels like pair with a 6spd gearbox this auto is fun don't get me wrong but I'm a fan of 3 pedals lol! Is there contact for you if I have questions along the way?

[@SubsurfacePodcast]

@@PappaDPrince If you have Facebook, it's Matt Joyner. You can message me there. My profile pic is on a boat with blue engines behind me.

[@PappaDPrince]

Thanks much! Looking forward to seeing more of the Rabbit content!

[@cali2468]

​@@SubsurfacePodcastI want to swap my '12 SE 2.5 to a 6M. Unfortunately, it's a 09G 6A so the swap might be too extensive for my liking since I'm going from auto to manual. At the very least I will be doing the upgraded valve body with the Sonnax mods. Right now the car has a USP cold air, 2.25" electric cutout right before the muffler, IE tune and ECS crank pulley.

[@mellymel7850]

Are there any differences between the 07 model year of the 09G and the 2010 model 09G? Shorter or longer gear ratios?

[@SubsurfacePodcast]

I'm sure there is but I'm not familiar with the specs at all.

[@kerchman4692]

I heard him say LSD and got excited

[@SubsurfacePodcast]

Loved my LSD

[@kurehawk]

20:05 Can someone please explain what I'm seeing with the runner in the background? They look transparent for a while...

[@SubsurfacePodcast]

Lol he was running behind the palm. The palm is on my side of the pavement.

[@kurehawk]

@@SubsurfacePodcast OHHHH. Thanks for the tips btw, im trying to decide on picking up a rabbit or mk4 vr6 gti to replace my dying ford ranger

[@NLDMesa06]

Does the 6sp auto transmission tune from IE compound the valve body issue of the O9G?

[@SubsurfacePodcast]

That I dont know. You'd have to ask IE about it.

[@3MTurbo]

Did mk5 with 2.5 engine come with 4motion spec? Cant finde any info if 2.5l mk5’s did come with 4motion.

[@SubsurfacePodcast]

None. FWD only. The only 2.5L to have 4motion is the factory turbocharged TTRS and RS3.

[@cbrky3271]

Any opinions on simple dry nitrous kits for a na 2.5l mk6 with a small shot for some occasional shenanigans?

[@SubsurfacePodcast]

I Dont know of a single person to have ever done it. You would have to trust your local tuner.

[@brandonparker8389]

What would you recommend as far as N/A exhaust? I have mid muffler delete/res delete, Magna flow muffler. My cat has been coded out with my tune and was curious if you think I should keep the cat or remove it ?

[@SubsurfacePodcast]

I recommend stock OEM MK6 header, USP catless downpipe, two oval Magnaflow mufflers. One before fuel tank and one at rear bumper. All 2.5" stainless.

[@SubsurfacePodcast]

Its the ideal amount of free flow and back pressure.

[@utubeman66]

@@SubsurfacePodcast I have a 2009 2.5 Rabbit and I want to upgrade the exhaust for more power and some extra sound. Is there any catback setups that will make any power difference esp at the low-end? I plan to do a UM ecu tune and leave the intake stock too. Thanks!

[@SubsurfacePodcast]

@@utubeman66 Catbacks really Dont make a difference. But its best to keep back pressure rather than going straight pipe. An exhaust that is TOO free flowing will hurt performance. For a good sound and good back pressure I recommend removing both mufflers (not the resonator, which is after the cat) but remove the 2 mufflers after that and have 2 oval mufflers welded in. Magnaflow and Borla are the 2 more popular brands.

[@utubeman66]

@@SubsurfacePodcast Have you ever heard anything about the "coffin muffler"? someone told me that it helps extract exhaust from the chambers and gives more power. The site is online and i just heard about it. Thanks much.

[@neoincognito4481]

If I wanted wider tires what do you suggest? I want more traction. What do you suggest for cold air or short ram intake? What do you suggest for a grounding kit? 07 Jetta 2.5

[@SubsurfacePodcast]

Well if you are still close to stock power i would just get 225/45/17 if you have 17" wheels. 225/40/18 if you have 18"s. If you have the 16" wheels you shouldn't really go past 215/55/16. But it depends on your wheels size, power, and your climate. Cause i like sticking with the recommended tire size that came with my wheels and just get good tires. I just got Firestone Firehawk indy 500s on my lightweight 17" OZ Ulttaleggeras and I love them. They were only like $96 per tire too. Unbeatable. I like cold air intakes by design but the 2 downsides are in takes longer to get to the filter when you want to clean it, and if you dont pay attention and get caught in a deep puddle you can potentially suck water into the motor. I never had that issue but some guys ended up driving through a deep intersection during a bad storm i guess. Short ram is nice cause they are right on top and easy to service the filter. Difference in power is so negligible its usually only 1-4 hp difference on a dyno. I like the Injen, and USP motorsport cold air intakes. For the short ram i like the Nuespeed P-flo. As for grounding kit, I never found one specific to the 2.5L or one that was universal that DIDNT have waaaay too much wire length lol. Its best to make one. Use thick gauge wire and quality ring connectors etc. Search on KZbin for the big 5 grounding kit. You should be able to find someone showing step by step on which components to ground, and how they did it.

[@neoincognito4481]

@@SubsurfacePodcast i want to run 17 inch rims and the car wont see more than 275whp. Its stock power right now but I want the car to hook better than what it is. I feel like something that's wider and 17 would do the trick. I'm not knowledgeable on tire sizes at all I just know the science behind traction lol.

[@neoincognito4481]

@@SubsurfacePodcast car is on stock 16 basic alloys with hubcaps. Maybe 15...not sure

[@SubsurfacePodcast]

@@neoincognito4481 Yeah stock even though they aren't fast the torque curve is healthy. Pretty easy to spin the tires.

[@SubsurfacePodcast]

@@neoincognito4481 if you want around 275 whp then of course youll be boosted. With all that extra torque you're gonna want alot bigger. Like aftermarket wheels that are 17x9 or 18x9. Then run 235s or 245s. Remember we dont come with an LSD so you'll NEED good tires. Both my cars have LSD but that shit aint cheap! Lol. $1,200 just for the LSD and ARP hardware kit. Another $65 for gear oil and paying someone to do it if you never installed an LSD before.

[@NB-ir1me]

Where did you get the 20v badge I have to have one!!! Can’t find one anywhere

[@SubsurfacePodcast]

Amazon

[@AbsoluteRecoil]

Hey man I finally have the time and money to start working on my 2013 2.5 5speed Manual 30k miles Golf, could you suggest what to start on to attain better rally handling and performance?

[@SubsurfacePodcast]

Well if you want Rally handling you can actually get OEM springs from a VW Tiguan and swap them into your car and get a nice lift. Then you could get come nice lightweight wheels and tires of your choice. From there I honestly would suggest (if you want to get serious) buy a used 6 speed from a MKV GTI, install an LSD from Wavetrac, while you're in there do OEM steel shift forks. Deutsche Auto Parts (ShopDAP.com) has them on their website. Then replace all the bushings in and around the shifter with delrin bushings from DieselGeek and install a short shifter from either DieselGeek or NLS (Nothing Leaves Stock) lastly for entry level power but vastly improved response, get a first gen Audi TTRS crank pulley with a new OEM 2.5L belt and tensioner, and get a tune from United Motorsports. Car will be COMPLETELY different

[@AbsoluteRecoil]

Florida 07K Thanks for the quick reply, this is exactly what I am looking for.

[@AbsoluteRecoil]

@@SubsurfacePodcast So i'm looking into all of this, couple of questions. Is it worth it to switch transmissions or should I just sell it off and buy a MKV GTI 6speed manual? Really don't want to go down this route, but if what I'm working with stock, regular golf 2.5 5speed-manual, is this something which is usually done, or is this something rare because there's too many drawbacks from working with that starting base? I hope you understand my question, wording is a bit convoluted. I've never customized any of my cars before and I'm new to this whole world even though wanting to get into it since forever. Is there anywhere I can reach you where we could talk more? I'd be willing to tip for your advice and guidance. let me know.

[@utubeman66]

@@SubsurfacePodcast How much lighter is the TTRS pulley than the stock 2.5 VW pulley and will there be a noticeable increase in power? Is the new OEM tensioner just b/c the old one is probably worn out. Thanks for all of the help! You are awesome.

[@SubsurfacePodcast]

@@utubeman66 its not lighter. It's designed to absorb vibrations from the engine throughout the RPM range which actually showed a percentage increase in power due to smoother operation. The lightweight billet pulleys dont absorb ANY vibrations at all so I dont use them

[@noblevengeance312]

Recently started running the Passat on E20, noticeable advantage in the high rpms, timing has been improved, and IE tune has automatically adjusted to the new fuel. Would you recommend E20 to others?

[@SubsurfacePodcast]

Most gas stations already contain around 10% ethanol. And from what I've seen most tuning companies don't start tuning for ethanol content until 30% or more, So 20% ethanol may be a decent enough mix to allow more timing without overworking the ability of the factory fuel pump. I don't see why it would hurt a factory turbo car especially since our ecu's are very adaptable. But for anyone who's naturally aspirated the ethanol content honestly doesn't really make a difference. I know the ECU will detected and adjust but it's probably nothing that I would feel because I used E85, E10 and ethanol free and honestly they all pretty much felt the same. I swore to myself that when I put E85 in the tank of the Jetta which was N/A, that it felt like it had a bit more top-end but you never know. It could have just been in my head.

[@noblevengeance312]

@@SubsurfacePodcast yeah man, I’ve noticed a slight difference in the higher RPMs. The car doesn’t lose steam up high anymore and feels a bit quicker. I cut about 2 tenths of a second off my 0-60 times with the E20, which is very surprising actually

[@TheALTGaming]

I've done just about everything performance wise for my mk6 2.5 except for the intake mani. Would you say it's worth it? I currently have a full custom exhaust, CAI, performance ignition coils, R8 spark plugs, and a 93 stage 1 tune from USP. 800 dollars has been hard to justify because it would be my most expensive mod yet and there is very little info about them for the 2.5.

[@SubsurfacePodcast]

If you have a MK6 Golf you can get one, but MK6 Jettas have the hydraulic power steering pump in the way. You'll need do get an updated tune for the manifold and I dont know what software USP used but I only recommend United Motorsports. Best tune there is for the 2.5L

[@TheALTGaming]

@@SubsurfacePodcast Whoops my tune is actually from integrated engineering my bad. I have a jetta but the power steering pump is not an issue for me because I have a manual, and my CAI required me to tuck away the reservoir so there's plenty of room. Just wondering what your take is on the cost to performance of the intake mani. Been watching your videos for a while btw keep up the good work, I have been wanting to make a video of my 2.5 as well.

[@anthonycoffey816]

Southern States has ethenol free 93 octane & though expensive, all my cars get filled there

[@cruisey9857]

I need that AC valve hardcore too. If possible links to certain products would make your vids cut down on unnecessary comments too, just an idea. :)

[@SubsurfacePodcast]

Yeah I can put links in description but I'm not as good as some other KZbinrs that have links in their video itself. Lol. I'll get better.

[@SubsurfacePodcast]

Here's one for that control valve though! www.rkxtech.com

[@cruisey9857]

@@SubsurfacePodcast Thanks Matt! Keep up the good work brutha!

[@marcogarcia296]

hey fellow jetta owner, i got an ac valve for mine for aroun $15 on ebay! i really recommend it!!

[@JayLatt]

So lightweight crank shaft pulley from ecs is a no go ? (Not the underdrive)

[@SubsurfacePodcast]

Some say they don't have issues, but I personally lost a belt within a month of running one. The ECS pulley is 100% with no vibration/resonance/frequency absorption built in like the stock pulley does. In fact....all OEM VW, Audi, etc...Chevy, Toyota, Honda, Subaru, Kia, Lamborghini, Bugatti, Daewoo etc etc etc all have crank pulleys that are harmonic dampeners. Removing that for a billet piece of metal with no actual function in my eyes is a bad idea.

[@SubsurfacePodcast]

Here is a great video explaining why even the stock crank pulleys/dampeners aren't the BEST when modifying a car and making extra power as well as revving higher than stock. So if you think about it, downgrading to below stock is a bad move. kzbin.info/www/bejne/gGKleKadfr-Se80

[@skrylark]

Can’t find where you talk about those 550cc Bosch injectors but I’m wondering if they would be worth putting in my rabbit? 07 2.5 w/IE power kit + stage 2 tune, awe catback exhaust, BFI stage 2 mounts. Feels like my car isn’t pulling right for how hard my engine is working.

[@SubsurfacePodcast]

Injectors arent needed at all until you're boosted. But you may have some kind of issue. Definitely have to scan it with VAGCOM to see what's really going on. Also, whats the elevation above sea level where you live?

[@skrylark]

@@SubsurfacePodcast thanks for the reply man. That makes sense. 1843’ above sea level in WA

[@SubsurfacePodcast]

@@skrylark That will make a difference. I'm at sea level in Tampa Bay, FL. The stage 2 set ups love the high RPM since the air is more sense. We are coming to find that people who live in higher elevation dont see as good of results with stage 2 as they do with stage 1 since stage 1 is all low/mid range torque. So I'd say you may be happier to either get a stage 1 tune with stock intake manifold and work on some weight reduction and better gearing in the trans like a 2007 GTI 6 speed swap, or boost it. On any level, its always going to make less power in high altitude vs sea level but at least with boost, its forcing more of the air into the motor.

[@skrylark]

@@SubsurfacePodcast Damn! Good to know. Sounds like a lot of work for someone as new to the game as myself. Thanks for all the info man I appreciate it. Are you on Instagram by chance, or another platform I could message you on in case I want to pick your brain again?

[@SubsurfacePodcast]

@@skrylark I don't use Instagram but I'm on Facebook. Matt Joyner. I'm in the VW 2.5L Group

[@bebopbuddy4914]

anyone know where he got that "20V" badge? I can't find one anywhere

[@SubsurfacePodcast]

Amazon or Ebay. Just search 20 valve emblem or badge. The "20" is a chrome finish but the "V" is reflective red.

[@woody95124]

how about mild chips?...just curious

[@SubsurfacePodcast]

All a gimmick. Only software worthy of any money at all is from UM or IE.

[@woody95124]

@@SubsurfacePodcast Thnx bud

[@woody95124]

@@SubsurfacePodcast Im & IE stands for?

[@SubsurfacePodcast]

@@woody95124 UM is United Motorsport. And IE is Integrated Engineering.

[@woody95124]

@@SubsurfacePodcast thnx so much

[@pushrolled]

Bro did you say u hit 145mph is that with tunes?

[@SubsurfacePodcast]

With tune yes. Stock it was limited to 125 mph.

[@roycarpenter8794]

I ran 89 in my 2010 Jetta 2.5 I get better mileage on it then 87 or 93 oil ran royal purple

[@kevovilla1056]

Hello, I modified my 2.5L just recently went stage 2 intake manifold with the IE tune. Problem now is I have an engine code that came up P0864 TCM communication circuit Range/Performance any idea what this could be after the tuning was installed..

[@SubsurfacePodcast]

Did you get their TCM tune as well? If not, it wont let you rev high enough to enjoy the top end gains. But if you have driveability issues like hard downshifts, its possible your valvebody is starting to go bad

[@kevovilla1056]

Florida 07K IE told me TCU Tune wont help due to communication being bad meaning my car needs services ill take that valvebody into consideration

[@kevovilla1056]

Florida 07K also I forgot to mention on the center dash where you can see ur cars miles and speed etc.... on the top right corner it shows a wrench symbol instead of gears like ( P, R ,D, ds) too

[@SubsurfacePodcast]

@@kevovilla1056 you need to go to the VW dealer and have them do a diag and scan it with their VAGCOM/ODIS system. They can tell you for sure whats wrong with it

[@cruisey9857]

How's the 6 speed compared to the stock 5'er? I def need to figure out how to do my gear oil (5sp). Great vid!

[@SubsurfacePodcast]

Different in many ways. It's stronger, (axles and gears) better gearing which is most noticeable in 3rd gear. Better acceleration. Doesn't have the same common differential failure as the 5 speed either. As for the gear oil servicing, the 6 speed is straight forward. Remove reverse light plug/socket (which is the best fill hole) remove lower drain bolt. Re-tighten bolt and fill with 2.5 bottles. The 5 speed is waaay more involed in order to change gear oil currently. It's still easy, but there are alot more steps. I'll make a video on it as soon as i can.

[@LostInStTropez]

@@SubsurfacePodcast you mentioned the Integrated Engineering vacuum pump block off plate. Is it just a simple, take off the vacuum pump and install the block off plate? Where does the vacuum get diverted to and where will the car pull vacuum from if you delete the pump? You said your in central florida, I'm in Kissimmee

[@SubsurfacePodcast]

@@LostInStTropez The pump just gets removed and a block off plate goes over it with supplied Hardware. But the vacuum needed for the brake booster gets diverted to the intake manifold. When you get the block off kit it comes with hoses that go from the brake booster to the stock intake manifold. It can still work on an aftermarket intake manifold but the hoses from the kit don't work the same as the ports for the intake manifold are different sizes and usually different locations than the stock one.

[@LostInStTropez]

@@SubsurfacePodcast is there any way you can private message me and explain it better.

[@SubsurfacePodcast]

@@LostInStTropez Sure. Give me a few

[@waynejordan7473]

Can I swap a 5spd into the auto version of these ?

[@SubsurfacePodcast]

Yes. Better yet, you can swap in a 6 speed from a GTI.

[@rawsondenna6329]

You should make a new video covering different stuff like a part 2 in 2021

[@SubsurfacePodcast]

I could. I'd have to compile more info. A video like that takes a while to prep for lol. This one could have been done much better.

[@rawsondenna6329]

@@SubsurfacePodcast definitely, you SERIOUSLY know your stuff. I’m in the Facebook group as well. But you got a TON of views on this video so maybe making a part 2 even better would get even more views. Just a thought.

[@SubsurfacePodcast]

@@rawsondenna6329 Thanks man. I'll consider it.

[@grillaoxD]

Nice video bro! But i have a question, i have one Jetta too, and i need to change the spark plug, but my model is the 2007/150HP and have searchig on the internet and this model the spark plug is different between the Jetta 170HP versions. That is correct??

[@SubsurfacePodcast]

No they are all the same. Just early on they used Bosch spark plugs, and then they went to NGK. Just go to the parts store and get NGK plugs. Iridium or platinum last a long time, but costs like $60 for a set. But if you get NGK nickel, they perform better, but have to be changed like once a year.

[@grillaoxD]

@@SubsurfacePodcast nice! Here in Brazil those laser platinum cost a lot. And the iridium is the less expensive than laser platinum. Im going to search these NGK Nickel... Thanks!

[@workingmanaudio2754]

@Florida 07K All Rabbits 2006-2009, 2005.5-2007 jetta use the NGK double platinum laser PZFR5Q-11 (6737) VW part number 101905600C. These are the only cars with a 2.5 that VW calls for NGK platinum plugs. 2007.5 and 2015 jetta, 2006-2009 beetle, 2010-2014 golf, 2012-2015 Passat all use Bosch copper/nickel FR7HE02 vw part number 101905601F. VW calls for all these cars to use a Bosch copper/nickel plug.

[@workingmanaudio2754]

All Rabbits 2006-2009, 2005.5-2007 jetta use the NGK double platinum laser PZFR5Q-11 (6737) VW part number 101905600C. These are the only cars with a 2.5 that VW calls for NGK platinum plugs. 2007.5 and 2015 jetta, 2006-2009 beetle, 2010-2014 golf, 2012-2015 Passat all use Bosch copper/nickel FR7HE02 vw part number 101905601F. VW calls for all these cars to use a Bosch copper/nickel plug.

[@adamtarnofsky3115]

Hey man I got my valve cover leak sorted with a new cover. I'm running a mini filter on the pcv outlet but have a vent to atmosphere catch can otw. My crank case hose is running to the intake before the TB along with with sai hose. Could I just run the one pcv hose to the the catch can with the filter on it and that's it?

[@SubsurfacePodcast]

Where is the connection on your intake manifold going? In original form the valve cover has a large hose that runs down, behind your throttle body and to the intake manifold. I'm against VTA cans as it's always ideal to have a recirculating system

[@adamtarnofsky3115]

@@SubsurfacePodcast I have an IE manifold. Crankcase hose and sai hose running into short ram before TB just like stock was. There are the port hole's on bottom of the IE intake. I plugged all but one for the vaccum line on the left side of factory intake.

[@SubsurfacePodcast]

@@adamtarnofsky3115 so I'm guessing you still have brake booster running to the vacuum pump?

[@adamtarnofsky3115]

@@SubsurfacePodcast yes

[@SubsurfacePodcast]

@@adamtarnofsky3115 hmm. It's hard to say since there are small differences between MAF versions, MAP only, SAI vs non (CBTA) and I've had a catch can on both stock valve cover and IE billet while using a C2 intake manifold. Easy for me to get confused lol. I always just recommend running the valve cover to the catch can as well as the crankcase vent (block breather) and then recirculating them back to the intake pipe (where crankcase vent connects

[@jonathansmith5534]

what do you have to say about the vacuum pump deletes and oil catch cans Edit: saw your comment on the vacuum pump

[@SubsurfacePodcast]

Catch cans are more of preference. I think they are a good idea on all cars and in my opinion it's best to have a recirculating set up vs. Vent to atmosphere. But most PCV systems are not perfect (and some actually cause major problems) so a quality catch can is a great idea. Speaking of, there is someone who makes custom catch cans for our 2.5L specifically. Adam Strunk from NLS (Nothing Leaves Stock) makes them in stainless steel or titanium with mounting by the upper timing cover. They look sick and are baffled with easy drain. Look for him on Facebook and shoot him a message. For that they are, he prices them very well too.

[@jonathansmith5534]

@@SubsurfacePodcast thanks a lot man, will do