Catted Vs Catless Downpipes + The Issues With Boost Creep

[@KombatKevin2812]

This channel is quickly becoming my favorite. Love the channel man I've learned so much new wrx owner here. Its my first Subaru so i wanna do it right. Thanks for the great content!

[@Smeedia]

Glad that the videos are helping! 😁 appreciate the support as well!

[@longislandchameleon4535]

Bro ! Same!

[@DMartinFitness]

I second that! On my second WRX - went from '11 hatch to '18 STI. Great info on your chanel @smeedia!

[@Aerospecial1776]

I feel it’s important to point out that while a catalytic converter does reduce CO emissions, the main purpose of the design is actually to reduce smog emissions. Smog is a catch-all term for oxides of nitrogen (NOₓ) which are a medley of molecules formed during combustion which consist of a nitrogen atom bonded with various numbers of oxygen atoms, hence the ‘x’ in the name. The key to the cat’s function lies in bond energies of molecules, and the triple covalent bond in NOₓ molecules have much a much higher bond energy than the double bonds in CO, CO₂ O₂, N₂, and other common exhaust products. To remove the NOₓ molecules, the cat media reacts with the exhaust gas by becoming extremely hot, reaching temperatures comparable to the combustion chamber where the NOₓ was formed. Since it takes the same amount of energy to break the bonds as it does to form them, the NOₓ molecules disassociate into monoatomic nitrogen and oxygen as they pass through, and when they exit the cat the temperature drops below what would be required for NOₓ molecules to re-form. The result is a significant decrease in smog emissions and the presence of smog is the smell the emits from a cat-less setup.

[@Smeedia]

Science! Appreciate the additional information added!

[@subarutime5089]

70 percent of all emissions are made by less than 100 corporate companies and how many catalytic converters have you seen on jetliners or any airplane and they still use leaded fuel as well 😮

[@rdrpro69]

@@subarutime5089how dare you! 😂

[@Mizxraim]

I dont have a cat I have a dog, does that make me...catless

[@Smeedia]

Oh 100% 🤣

[@WhatsTrending989]

😂 🤣🤣

[@lacboiatl]

The profile pic took it to another level 🤣🤣😂😂😂🤣🤣🤣

[@almikhonavarro7337]

Dogless

[@j20sti]

😂

[@chronicbeans9689]

Me who has n/a subaru: "Yes, boost creep, problem noted 👁👄👁"

[@Smeedia]

😅🙏

[@samuelg3586]

But no boost....

[@andybell5581]

I've ran an Invidia catless j-pipe and a resonator delete on my 17' WRX for over year now because I really wanted that "diesel" spool sound. I've never had any boost creep oddly enough and have always been aware of the cons of running the set up. Then again this car has been through absolute hell and it's a miracle it's even running still lmao

[@Smeedia]

Haha as long as she's still going strong that's all that matters!

[@andybell5581]

@@Smeedia no doubt haha, you should start selling some stickers!

[@Smeedia]

@@andybell5581 I sell stickers 😁 m.facebook.com/story.php?story_fbid=3299645026730414&id=100000548482542

[@paulmarsdensr1095]

All of your older videos are very entertaining brother. Have a great week.

[@Smeedia]

You as well Paul! 🔥🙏

[@SuperDrifter691]

Its also important to note what hardware comes in the box with certain downpipes. Sometimes a cheaper downpipe will be missing a gasket or resuse bolts that were already on the car instead of new hardware.

[@HavokStrifeX]

I smell my cats all the time. They're house cats, eating the same food, pooping in the same litter, and they smell completely different. It intrigues me. Nonsense aside, I learn something new in every one of your videos. You're becoming my favorite channel. I mean, I paused binging Breaking Bad to watch this. You're doing something right!

[@Smeedia]

Lol I can only smell my dog... not even the same 😫 breaking bad! Did the release new seasons?! Appreciate the support and glad the videos are enjoyable 😁

[@HavokStrifeX]

@@Smeedia Well, they came out with that movie not too long ago. But no, I'm just that ine guy on the planet who just started watching it for the first time.

[@Smeedia]

@@HavokStrifeX worth ittttt great show 🙌 lol I got all excited 😂

[@jackreardon4384]

bought my 2012 in December and your videos have shown me that the original owner and his tuner did my car right. Thanks for all the great Subaru info

[@Smeedia]

Glad to hear you snagged a solid car 😁

[@takeda1648]

Catted downpipe to keep it friendly with our neighbors😂

[@Antisilent]

Frankly, I'd be upset if my neighbor had an STI that DIDN'T sound obnoxious. :D

[@503genetics4]

You have the wrong neighbors

[@204_mod_shop]

Come on mannnnn gotta say good morning to the entire block when your leaving for work 😂

[@fredoindaWRX]

Goood Morning neighbors with my Subaru xt is awake with endless catless exhaust and invidia high performance catless downpipe lol

[@wreality4712]

Eff those neighbors

[@FinkNimrod]

Bro I love this channel so much. The way everything is explained is super clear and informative. I seriously hope your success comes because it is beyond deserved.

[@Smeedia]

Appreciate the feedback and support! Try to break out the information in a relatable way!

[@FinkNimrod]

Smeedia however your plan on doing it really works bro. I just got my 2013 WRX and you have helped me so much. The information your giving out is not found on any channel, and if it is, it’s no way as fluid as this. Thanks for even showing love back man, little things like that go a long way for loyal subscribers. Loyal as in super supportive not in a creepy stalker way.

[@ChrisFromKenya]

"make sure you wash your hands and not touching people butts?" Love the content my dude!

[@Smeedia]

Haha thank you 😅😁🔥

[@baltod4978]

Perfect video. Thanks! Just boosted my miata and noticed I was running lean at higher RPM's. I also noticed the boost was increasing from where I had it set. I installed a test pipe while installing the turbo system... but I'm thinking the cat is going back on. Thanks for explaining everything!

[@Smeedia]

Sounds like a fun project, and half that the video helped! 🙏😁

[@RicondaRacing]

I just got the Invidia catless downpipe and it's amazing. More flames, pops and noise. I had a Grimmspeed look-alike and I ran into a fitment issue because the internal wastegate was hitting a flange on the downpipe. EWG coming in the future...

[@realtech9345]

BOOST CREEP FIX!!! I used to own a 2003 WRX and then a 2004 STi. There is a fix we used to do on those for boost creep on a STOCK TURBO. We would enlarge toe orifice on the wastegate. I did several of them for other people too. When you have the downpipe off of the turbo you remove the clip and rod from the wastegate valve. Open the valve and grind a VERY SMALL amount off the wastegate hole and keep it round. You can always take off more, you can never put it back. if you take too much material off you won't get enough boost. Solved the creep issue on my STi with a catless downpipe and many others too.

[@Smeedia]

Good to know! Thank you for adding!

[@papergunkid]

scrolling through sti vids for my sti and i see the TMG banner in the back. Much love brother!

[@Smeedia]

Eyyyyy, Brian is awesome to work with 🙌

[@ricorodriguez2733]

Ewg with catless downpipe is a must. My wrx running strong with 178,xxx, learned a lot from your videos. Keep up the good work fellow Washingtonian.

[@Smeedia]

EWG is next on my order list for parts. Going to stay catted for the time being but definitely need to make the swap. Hope all is safe where you are and your able to buy toilet paper!

[@ricorodriguez2733]

Smeedia Can’t wait you see the install video to show my support! No toilet paper for me :( Solution: taking the ones at work.. shhh lol stay safe.

[@Smeedia]

@@ricorodriguez2733 we had to go to target at 7 am to snag some, absolutely ridiculous

[@justinmielsch5924]

I know this comment is late but this is why I like my safety only county.... no emission. I'm catching up on all the old videos

[@heezyvlogs]

Been looking for info on this topic everywhere. Dropped a sub. Keep it up!

[@Smeedia]

Thank you! Glad the video helped and appreciate the support!

[@shotar4671]

Same here bro ! +1 Sub 💯

[@erickpina8802]

can’t you control it with a boost controller ?

[@Smeedia]

To an extent, but the physical hole for the wastegate is just too small for the amount of exhaust gad to pass through

[@tomc6593]

2012 wrx tuned on 19psi.... intake top mount turbo back exhaust

[@__thatsti]

Sheeit dude i didnt know youre studying microbiology! My grandfather is a hugeee microbiologist here in the east coast. He a big part of laboratory alliance hes written books and all. Love your videos man

[@Smeedia]

Been. While since I've done anything eith it but definitely a cool field to be in! 🔥😁

[@fnddr9598]

Bro you are my new favorite channel.

[@Smeedia]

Eyyyy thank you! Glad your enjoying the videos and content 😁😁😁

[@cre8tivegarage157]

We have a subaru WRX. This was very informative. We appreciate the breakdown. This cleared up alot of questions we had.

[@Smeedia]

Glad that the video helped!

[@Sgoz92]

I went Catless on my 2018 WRX. To minimize boost creep, I put on the Killer B EWGs and this thing is loud AF now.

[@Smeedia]

Thats the way to do it 😍🔥

[@jiggaja900]

The intro alone got me😂!! Very informative altogether 🙌🏽😎

[@barrykilts4506]

I wish someone would do this test on a non boosted engine cause I think it would gain considerably but everyone seems to be testing boosted and the less heat from test pipe should be of some benefit also

[@PureEvolution]

Just done my wheels on my evo x white but those wheels look nice what are they please? brill video pal

[@Smeedia]

They're working emotion D9R 18x9.5 +38, and thank you 🙏🙌

[@PureEvolution]

@@Smeedia Thank you for fast reply just looking see if i can get them in my offset

[@PureEvolution]

Yip they do a size i can work with nealry 1500£ mind lol

[@dylanrossen8176]

This guy don’t miss

[@_boxer_wrx_sti_]

I’m planning to get a Tomei Expreme Ti single exit cat back for my 2020 wrx.

[@hereitcomes9106]

2020_wrx_boi I have the same for my 2019 WRX and you won’t regret it if you get it!

[@6z0]

Was it worth it because i have a Greddy RS single exit but am looking for a upgrade

[@godgivensti9745]

So I was told cause I started destroy my high flow and that I'm pro tuned and external wastegate and take out the kitty liter and I should be fine still just log afr so they can make sure everything still fine and apparently cobb discontinued downpipe and they don't make anything that you can't have in ca

[@adriancadena2888]

Video on when to consider getting a tune , pro tune / E tune etc. love the channel, I’m in the army right now I ETS in 2 months yuhhhhh

[@Smeedia]

Get that DD214! lmao and I'll encorperate that in 😁

[@ItsJaysmr]

unrelated question, but what wheels are those? (awesome video by the way man!)

[@wrenvizsla2432]

I want to buy a cobb catted non resonated 3” j pipe/downpipe. Does replacing stock downpipe cause any reliability issues and or engine damage? A dealer said yes but everyone on the internet says no?

[@Smeedia]

As long as the car is tuned for it, no it will not

[@mateoshort-cb6ti]

Do a video on Kia stingers and what type of budget friendly/ money friendly exhaust systems

[@acostaalex94]

What I learned.. always wrap your downpipe!! Got it

[@Hyunw22]

if you want to shoot flames, go catless

[@Smeedia]

All the flames 🔥🔥🔥

[@JaredLaverty]

Okay well I’m gonna be going catless

[@huntercooper5161]

So my cat has gone bad. I’m at 155,000 miles on the car…anyways, what should I do?? Spend 2k on a new cat? Or go catless then if I do, do I have to get a tune?? Help thanks

[@Smeedia]

Alr3ady have an accessport? 👀

[@huntercooper5161]

@@Smeedia no sir. Bone stock

[@Smeedia]

Either a new stock downpipe or if it were me I'd snag a Cobb downpipe and accessport 👀

[@huntercooper5161]

@@Smeedia thank you for your advice mate

[@huntercooper5161]

Another question for you. So I’d I go COBB catted downpipe should I also get an intake ?do I need a tune?

[@catconsumption4272]

Getting a downpipe doesn't automatically void your warranty. Look up the Magnuson Moss warranty act. The dealership has to prove that your installed after market part is what caused said malfunction

[@Smeedia]

That's not true, the Magnuson moss warranty act covers third party manufacturers that make OE emplacement parts. 🙏 kzbin.info/www/bejne/pGK7mWihfLuSopo

[@thatguy-ve6mb]

Getting a CVFAB downpipe for my 19 mustang ecoboost. It already has a 91 octane tune from palm beach dyno. Do I need to retune my car for my new downpipe?

[@Smeedia]

Yes you will need a re tune 🙏

[@shaedonboy]

Are you saying that my jb4 tuning device is not equipped to facilitate my tork motorsports catless downpipe?

[@jerstolp1]

Not on some years.. I've been running a stg2 fully catless Cobb Sri. For almost 3 yrs on my 04 fxt 5mt... I think this is more prevalent on newer models..

[@Smeedia]

The older ECUs are a lot more tolerant but boost creep is a mechanical issue and all years are prone to it

[@Davethehorse321]

I’m very glad I subbed to you, you definitely know what you’re talking about through all of your videos. I was told by my local tuning shop to get a catted J-pipe, is that a down pipe still? Is it basically just another way of saying downpipe?

[@Smeedia]

Yes lol they call it a j pipe on the WRX just because of the shape 😅 appreciate the support 🙌

[@KS-yh1oq]

Smeedia Bro thank you for explaining this, I was wondering what’s the difference from a downpipe and jpipe. New sub!

[@Smeedia]

Appreciate the support! And glad that I could help 😁

[@hotrodjohnny3283]

I have a 2016 Mustang EcoBoost, Deleted muffler's, Resonator delete, Stock turbo, aftermarket intercooler, Cobb accessport tune by PDtuning Stage one with bubbler tune, Knowing that this tune can harm the catalytic converter, I would like to know if running a high flow catalytic converter Would I still have BoostCreep?

[@Smeedia]

Having the cat will help to significantly reduce the amount of boost creep you'll see, but not fully eliminate it. The only way to truly eliminate boost creep is by utilizing an EWG. But you would see very very minimal creep with the set up on your mustang

[@hotrodjohnny3283]

@@Smeedia What do you recommend? To do so i can run a down pipe or you think running a high flow would be fine without having to think about creepboost

[@Smeedia]

TBH you should be fine with a cat. You'll have minkr boost creep that is manageable and shouldn't cause crazy spikes like a costless one would

[@nicholastoufos9178]

What about running a Catless down pipe with NO turbo. I only have a muffler delete

[@Smeedia]

You'll be fine 🙏

[@nickgonzales4339]

Can you do a things to know before you straight pipe I want to straight pipe my wrx but all these exhaust terms and stuff got me so confused so fat I only have a remark muffler delete

[@roberthollingshead1964]

Best wrx channel out there ,, been watch and subscribed at 771 and Anything I need to know I watch your videos keep it going

[@Smeedia]

I've seen you around for a while lol, I remember user names 😉

[@pupusatime99]

Damn so I need a protune for a catless? I’ve been using stage 1+ OTS this whole time

[@Smeedia]

Yessir, catless on ots will have overboosting issues

[@pupusatime99]

@@Smeedia would a boost controller fix that issue?

[@Smeedia]

No. Only fix would be an EWG to completely mitigate the issue

[@Telesko]

I bought a used STI with an invidia exhaust. How can I easily tell aside from smell if its catted? Or even if I can tell if its cat back or not? I cant ask previous owners

[@Smeedia]

You should be able tobsee the Cat. Would be around the transmission and on the downward side of the downpipe 🤙

[@Joelsmediahere]

Is changing the down pipe legal, in california? Mine got dented and I need to swap it out :(

[@Smeedia]

I think Cobb is making a CARB legal one 👌

[@StylezOnline]

I have an Invidia Q300 and the stock downpipe on my 2009 Impreza WRX currently. I’m a little nervous about emissions (I want to go Catted) and also sound laws in Massachusetts are WAY more strict

[@Smeedia]

Catted with a resonator and a muffler and you should be okay on the sound aspect 🤙

[@loganvia2080]

Will custom fabricators make custom catless downpipes? Can’t seem to find any online

[@Smeedia]

Most of them will

[@Countdracula6]

I don’t own a Subaru but still enjoy watching your channel. Good info and nice car

[@Smeedia]

Appreciate thebsupport and the feedback and nice to know the videos are still appealing. 😁

[@GTkars]

what happens if i put a cx racing turbo manifold on a stock tune.

[@bmoore8853]

Did you get dumped on today too? Woke up to a winter wonderland and no traffic on the streets in the couv today. PDX is starting to wake up, but damn i can't wait to get done with work and head back home to have some fun in the snow!

[@Smeedia]

No snow here thank god 😅 I'm so over the snow. Like 10 miles away the got dumped on though. Everyone here straight up panics with the snow

[@xil3ntkha0s]

Regarding ceramic coating the down/j pipes: I'm assuming there's some specialized coatings for that specific purpose? Or does the plain old ceramic/graphene coating usually for the paint work the same? ✌

[@Smeedia]

They typically use a special costing that's very resistant to heat 🔥

[@xil3ntkha0s]

@@Smeedia ✌️ parts going on this weekend so I'll have to look into alternatives to address the heat post install. Maybe some heat resistant sleeves on hoses near the jpipe.

[@wrx_keke21]

Can you do a review with the extreme online store about there down pipe

[@jeffjurs09]

Love the videos man. Where can I get a protune or etune here in WA?

[@Smeedia]

I'd suggest PRE, English or Surgeline 🔥🙌

[@SquallRinoa89]

Appreciate your channel. As a 2005 Subaru Legacy GT owner, its helped me understand ALOT. Kudos

[@Smeedia]

Appreciate the support! And glad the videos are helping 😁

[@Jarrckk]

Just installed a catless turbo back on my 04 legacy GT. Can’t get it tuned for another 6 weeks. I still need to drive it, should I be concerned?

[@a.belsheim9446]

So what happens when the ots tune recommends a cattless Downpipe?

[@Smeedia]

To my knowledge no OTS Tunes suggest using a carless downpipe, especially with thr EPA Crackdown

[@kcspeed9980]

I know the car has changed since this video. But that thumbnail looks soooooo goooood! I wonder if a gt wing would suit my wrx. I track my car and would love to add some downforce.

[@Smeedia]

APR is the way 🔥

[@keeganrenick9356]

Great video. Can't wait for the ewg video need one for my car as I have a grimmspeed limited catted downpipe but still having boost creep issues on my car

[@Smeedia]

Once I get my EWG here we will do it, some videos I want to have demo parts to show everyone 😁

[@keeganrenick9356]

@@Smeedia Awesome still saving up to get one and then get a tune for it after it is installed

[@Smeedia]

@@keeganrenick9356 same 😅😅

[@yea4865]

Is there an exhaust that doesn't void the warranty and is loud that doesnt cause boost creek?

[@Smeedia]

ETS extreme catback no mufflers, loud AF

[@yea4865]

@@SmeediaThis exhaust wont void warranty and wont cause boost creek? Would it pass emissions and thanks for answering me.

[@Smeedia]

Yessir, catbacks are fair game, just don't touch the downpipe lol

[@yea4865]

@@Smeedia Do you have a catted downpipe or what kind do you have? Do you recommend a waste gate and what kind.

[@Smeedia]

At the time I had a Cobb catted downpipe

[@Jacksonpackguns]

Just left a microbiology research lab... Cool job, I'm a chemist. Environmental work is what I specialize in.

[@Smeedia]

Nice, recently left mine as well. Mainly did growth cultures and CFU counts though lol. Environmental work is interesting, what type of chemistry?

[@todirelbogdan3930]

I'm confused now )) If I do not want to spend a lot for a catted one, will a catless just eventually fck up my Turbo ?

[@danielfish101]

Well if you’re gonna, buy asap. EPA has cracked down on down pipes. Fewer and fewer shops are selling them

[@sixstrz8310]

Why I ended up going with a catted over cattless for my wrx is because if you plan on running e85 in the future with a catted you can but if you have a cattless you are not able to

[@1slashwylde]

Because of your state laws?

[@cassiejvance7496]

Bro, 100% video 👌👌. I bought a bottom range 09 wrx hatch. Nothing done to it. All I've done is 3" turbo back decat. STI style rear muffler been cut open and all the crap removed. Welder back up. Took housing off oem air filter front part to reviel filter. Half inch spacer last joint before rear muffler. Got the rumble, got the turbo spool sound, got natural pop and bang through gear change. No boost problem, and it's like a totally different car. It almost pulls my hands off the steering wheel through gear change. I'm in the UK running standard UK 99ron petrol???

[@Smeedia]

You guys get stronger fuel over there than we do 😅 I work with a couple petrol companies like apple green and Circle K over there

[@cassiejvance7496]

@@Smeedia we get like 3 kind of grade 99ron if you listen to the public. Most 99 is available at our supermarket pump station's, but regard as not the best. There are only a handful of genuine garages who sell 100% quality 99.But that's just where I live, Wales United Kingdom. I believe that in the actual uk the quality is much better. What's your bhp, sorry I only just started watching your chanel today 📺💯📺

[@wrxhex]

What stage tune if any would I need for adding a downpipe? only have catback right now with MA performance ots stage 1 tune at the moment. Also I’ve heard people have problems with the check engine light cause I know it matters where the cat is, was wondering where it should be when I get one? Should add I’m gonna be getting a catted downpipe too.

[@Smeedia]

Stage 2 tune is what you'll want. What brand downpipe are you getting?

[@wrxhex]

@@Smeedia I was looking at Grimspeed maybe. Also the Cobb one but some sites have it on back order right now. And I can run the stage 2 just with the downpipe right? I don’t need intake or anything else? Even if the ots tune says it’s for intake or something as well? Was getting my ots’s from MA performance cause people were saying they were a little better than Cobbs but I have Cobbs too. Was also maybe thinking of gettin MA performance downpipe. Cause I know certain ots tunes can only be paired with their stuff. Just indecisive right now lol.

[@TheColt339]

I bought a wrx that has a catless downspipe and it’s throwing O2 sensor code P2096. What tuner do you recommend as original owner did not include his with the car.

[@Smeedia]

Snag a Cobb acessport V3, if you have access to a pro tuner I would go to them if not there are some very good etudes such as Eric at torqued performance,.Abbott and a few others that can get you squared away 🙏

[@TheColt339]

@@Smeedia thank you!

[@TheColt339]

@@Smeedia I have another question, once have the Cobb accessport is there anything specific I need to do to have that code not be triggered causing my engine light/traction light and flashing cruise control light to come on?

[@Smeedia]

There shouldn't be. Should just be PnP for you

[@WRXMAN-ms2mm]

Car mods is about finding balance. With car mods $ tip the scale heavily. Even with catted you can generate massive hp and torque and a sweet even loud exhaust note, if high decibels are your thing. Lastly you are emissions legal regardless of where you drive or end up driving should you move. One less thing to worry about.

[@Smeedia]

Good to know, wasent sure about federal emission standards on that one.

[@jakejohnson7596]

Would it be ok if I put a catless Down pipe on my car and kept the rpm’s low to drive it to get tuned

[@adalbertorosa1015]

Hi I have a 2010 legacy gt I need help finding aftermarket parts I have a ej255 can’t seem to find parts any help will be appreciated first time with a trubo car thank you

[@jdmcountry9952]

I have always liked your videos good content!

[@Smeedia]

Eyyyy, appreciate the support 🙏 🔥

[@the_batmobile0.4]

What about power? Does catless downpipe pipes more power than a catted one if you're full bolts on?

[@Smeedia]

Differences are negligible on most atreet cars. Maybe a 2-3 HP difference than using a quality Cat

[@the_batmobile0.4]

@@Smeedia oh ok, because a tuner told me if you're full bolts in, like upgraded turbo, E85, exhaust, intake, intercooler etc that a catless makes a huge difference

[@djsthemetereman]

I would love to put one in my 21 Type s preferably catted

[@samvw8797]

how did you squeeze your car into taht garage

[@brando5200]

I have a 13 wrx with Cobb airbox intake and a perring turbo inlet , as well as perrin aos . Am i boost creeping if I am getting 18.50 psi on Cobb stage 1+ 91 arizona tune .has muffler and resonator delete with stock down pipe .???

[@Smeedia]

OTS Tunes may cause that, definitely would suggest snagging an Etune

[@brando5200]

@@Smeedia how do i do that? I love your channel by the way

[@brando5200]

Is there a good tune i should go with ?who do you recommend

[@Smeedia]

Look up delicious tuning and they can work with you to get a custom tune made for your car 😁

[@kalebstout7673]

Found a used Invidia divorced down pipe and a turbo XS non divorced down pipe both have high flow catts, just wondering which would be better and if I need to run a wastegate with the divorced or not

[@Smeedia]

I always use the open bell mouth, I do not recall off of the top of my head but the differences between the two were not noticeable. I would snag whatever one is cheaper in price

[@bobby_t7149]

So I went back to watch this as I have a question regarding cattless down pipe and boost creep. 2015 wrx twinscroll on cattless down pipe. Can I add external waste gate, and if so your recommendation to prevent boost creep?

[@Smeedia]

Yes you can and the EWGs will mitigate all the issues with boost creep. For those that stay IWG you can only mitigate it so much with a tune since it is more of a mechanical issue than anything else

[@bobby_t7149]

@@Smeedia Yep, dumb question!!! 100% clicked right after asking. Total mechanical problem. Faster spool=more air= high pressure in combustion, possibly insufficient fuel etc.= bye bye motor... New header it is...fml.. Atleast I have your videos to remind me how minimal my car issues are..🤣🤣🤣

[@Smeedia]

Just need the up pipe ans wastegate, you can reuse the Stock header if you wanted to 🙏🙏🙏

[@bobby_t7149]

@@Smeedia wait, what? Up pipe? Is that between the header and turbo?

[@bobby_t7149]

Awesome, just looked it up. $250 is better than $1100! Thanks!!!!

[@connorwalls.]

I have a catted jpipe currently but I’m looking at going catless in the future just to have fun with pops and flames every once in a while but I’m not looking forward to having to install again

[@Smeedia]

The studs on the FA20s turbo are always the worst. Seen them strip so many times 😖

[@williamhackett5713]

This was the best advice I've heard and I almost got catless downpis lol.cheers mate

[@Smeedia]

Glad the video helped! 😁

[@williamhackett5713]

Literally I’m placing the order tomorrow. Cheers mate and you’ve got a new subscriber 👍🏼👍🏼

[@Smeedia]

Appreciate the support and what downpipe are you getting? 😁

[@williamhackett5713]

A scorpion high flow catalyst for an Audi TTS 😃👍🏼

[@Smeedia]

My buddy has a TT, very fun cars and they sound so good 😍

[@lacboiatl]

Since my catalytic converter is on a cadillac can I call it a cadillac convertible????

[@severtheties]

i need ur motivation lmao good stuff as always

[@Smeedia]

Lots and lots of coffee... 😅

[@HectorGutierrez-oy1yv]

by heat wrapped is that the foil type material? I bought mine with the fabric-like material. but is not the full pipe is only closer to the turbo

[@Smeedia]

The fabric material, it's made of either fiber glass or titanium. The foil is reflection tape to bounce heat off of objects

[@zack-kr3uz]

how much louder would you say a catless dp is than a catted dp? my sti has a catted dp with an invidia cat back and it sounds good but i want to make it a bit louder, was thinking a tomei could help too.

[@Smeedia]

A wee bit louder not crazy crazy louder

[@Chris_vab]

I keep getting boost creep on a stock 2021 sti Catback exhaust running the Stage 1 91 octane ACN tune

[@coopdogdan3912]

Should I still get a external wastegate if I get a catted

[@Smeedia]

You don't have to but it will help your tuner with better boost control

[@amirzia304]

Hey. I have a 05 sti and it came with a hks. I was goi g to go catless and tomei back and suggestions

[@Smeedia]

I would go catted if your staying IWG, and a tune can help with thr BOV but a bypass valve is what i always suggest

[@maaaxxd372]

Something was super weird with my wrx, never overboosted a single time on my 05 with an ots map while completely catless. 1st pull with my sti it overboosted enough to hit fuel cut lol with a custom tune

[@Smeedia]

Interesting, could have something to do with the cat before the turbo. But not sure on that one

[@maaaxxd372]

@@Smeedia it had a catless uppipe as well! It was really weird haha. Even in really cold weather!

[@maaaxxd372]

@@Smeedia oh actually i had a huge leak in the up pipe i forgot about so that was probably why. It was an hks one so i didnt expect it to have issues but 12+ years of heat broke it i guess. Huge leak at the turbo flange, noticed it when i put my EWG on. That would definitely explain it

[@nathanhess3920]

Might be stupid question. But if I go catless... And get headers with external waisgates, will that work as the waistgates for boost creep?

[@adibz959]

Just found this video. What if i want my exhaust to be more silence. Which one is a good option, catless with resonator, or catted without resonator. Which one is cheaper?

[@Smeedia]

Catted will always be more expensive but catted with a resonator will be quiter

[@MrBillDaBear]

Good info! I may add - If you want to run an OEM VFxx turbo on a catless downpipe, I recommend porting the internal wastegate (which is what I did on my car) It’s a simple process. Remove your turbo, take off the wastegate actuator, and remove the V-band clamp that attaches the exhaust housing. Use a mallet and remove the exhaust housing, being careful not to damage the turbine wheel. Take a Dremel and a grinding bit, and round off the corner that leads exhaust gas to the wastegate. DO NOT ENLARGE THE WASTEGATE HOLE, you’re simply smoothening the hard edge that leads to the wastegate. This encourages exhaust flow out the wastegate instead of going through the turbine. There are a few videos and forum posts on this process, so do your research. I’m on a VF48 e85 at 20 psi, never had an issue with creep. A 3-port EBCS might help, but there’s nothing that can truly eliminate creep other than having a larger wastegate Last and most important, GET A REAL TUNE 🤣

[@Smeedia]

Appreciated the addedd info! Getting as much information to people is what I'm all about!

[@haroldthebrokenwrx3394]

Is it normal for a catless car to smoke out of the exhaust? My 2003 bugeye started doing that right after I had a catless downpipe installed.

[@Smeedia]

New exhausts will smoke a little, what color was the smoke?

[@haroldthebrokenwrx3394]

@@Smeedia I believe it was white. Smells awful. I was told that the smell is “like burnt spark plugs”. But that wouldn’t be causing the smoke. I was also told that something was broken when my exhaust was installed. Not sure what but it had to do with some sort of piping (somewhere along the exhaust).

[@Smeedia]

If its a new exhaust there is typically some oil still in the piping from when it was made so it burns off. Keep an eye on it for a day or so and see what happens. If it goes away, all good. If it's white smoke that is a symptom of burning coolant

[@haroldthebrokenwrx3394]

@@Smeedia Awesome, thank you. And what if I don’t see any change in coolant? I’m usually keen on filling the coolant up and having it changed. Any suggestions on what I should do?

[@haroldthebrokenwrx3394]

@@Smeedia I should mention that my motor will be swapped out with a JDM EJ205 in December. I don’t mind spending a bit of money on this motor to have it last until the swap.

[@TheE3R]

Tough choice, I live in Ohio, I don't think they mess with the emissions check. If i Go catless to match my Invidia R400, still need to get protune in order to run the intake as well. But with the situation of "THAT" the tuner is not working at the time. Good thing you clarified running catless won't work with OTS Maps.

[@Smeedia]

I made the mistake 😅 dont make my mistakes lol

[@TheE3R]

@@Smeedia lol, i think ill save a little more and get the grimmspeed limited, and add an electric cutout for the fun💪

[@STRKDVL_STI]

Probably been ask but noob question here is there a difference between power on catted and catless ?

[@Smeedia]

Slightly but not a ton with how well cats have come 🙏

[@STRKDVL_STI]

@@Smeedia thanks

[@king_of_claps5320]

So if i install a catless downpipe and get a pro tune for the boost creep will that stop any problems that could potentially happen?

[@Smeedia]

No, boost creep is more of a mechanical issue than a tuning one. Best thing would be to get an EWG with a tune. A tune by itself will help but won't completely mitigate the problem.

[@Paul-dark25]

Will I have boost creep on a fully stock but decatted 2008 S-GT Hatch? The first cat is original but emptied the second cat is straight pipe with o2 sensor and spacer. (Its a ej20X japanese wrx)

[@barshushan]

I have a gr supra and I want to install a catless Downpipe, do I still need the EWG you were talking about in the video? Because the supra comes with electronic waste gate that suppose to keep the boost in check. Thank you 😄

[@Smeedia]

Ideally yes, but I belive electronic wastegates are still subject to boost creep. It's more of a mechanical limit then anything

[@itzflash6241]

I’m just confused or whether to get catted or GESI? I don’t understand the GESI 😅

[@Smeedia]

GESI? 🤔

[@itzflash6241]

Smeedia yeah apparently from what I’ve gathered so far from MAPerformance is their jpipe you can get catted or GESI. Which I’m assuming it’s just a high flow cat from what I’m reading but it’s like $200 more and I’m wondering if it’s really worth it. Guess it’s made out of metal when others have ceramic. Beats me. Just want what’s better for my 15 wrx. Assuming GESI

[@trigun989]

I've had my WRX for a while now so I know most of the information. But it's always good for a refresher and new owners. Good job we appreciate the effort

[@Smeedia]

Appreciate the support and feedback! Teying to bring all questions into the channel. Once all of the basics are covered lol be making more technical and in depth videos on deeper topics.

[@-slurmdaddy-8147]

I’ve been running killer bee header IWG to their catless downpipe I Plug in n out my egr as needed for emissions. Tell me how the test results say the cat passed when there is no cat on the car lol

[@Smeedia]

Lol you have some magic going on there 😅

[@-slurmdaddy-8147]

Smeedia tuners able to work around state emission requirements haha