JB4 vs Flash Tune | VW MK7 GTI

[@LucasHuang]

"Short, concise, and to the point" ... video does not meet any of that criteria

[@illWill]

That’s super concerning if you didn’t find this clear and concise, lol.

[@fallenangel7898]

Hey there. I work at VW. If your car gets scanned with a tune, we can’t see that you have a tune or not, but we can tell it’s been flashed. Granted some recalls flash the ecm too, but if it’s supposed to have 3 flashes and yours comes in with 4, it is going to be considered TD1. Once it receives that fancy title, it is now voided everywhere. If you flash it back to stock, it now shows 5 total so that’s not going to work. I’m unsure if this would void all warranty or just the power train , either way I would be prepared for the worst.

[@MeltingRubberZ28]

People with big turbos get their water pumps replaced under warranty. It's not entirely powertrain related, and anything beyond that isn't out of warranty.

[@christianrodolfo]

hi i just bought a used as is gti and i went ahead and purchased warrant to cover my vehicle but it came to my knowledge that the car was previously tuned because when i took it to autozone the other day the mechanic scanned it and i got a tcu locked code so the dealership had to have known the car was already tuned and it had a locked code on it when they sold it to me but will my warranty be voided because its been tuned before

[@tea7697]

@@christianrodolfo Any updates?

[@spoolygolf5186]

“Go run a stage 2 without a downpipe“ 😆Great videos as always.

[@harrymk6835]

You can stack jb4 with an ecu tune and have both at the same time for extra power

[@KM-je6bf]

Make sure you put some money away for a new turbo

[@sheikrohoman7272]

I wanted to know the same thing

[@andrewdavis9827]

I wouldn't recommend that heard stories of people fucking there car up badly

[@davis7323]

I thought about adding a jb1 go my stage 2 tune on my m4, will +4psi blow my engine lol

[@jimbrown5605]

Here to say last week my 2019 Golf R threw EPC codes due to wastegate actuator. Removed jb4 (using map 2 usually) brought to dealership and had my turbo replaced under warranty. Hot take. I even left my obd2 cable tucked behind my battery and in the car tucked under my dashboard unplugged. (didnt want to fish through firewall again!) ZERO WARRANTY PROBLEMS.

[@EthanL21800]

Is it worth going straight to stage 2 and skipping stage one if I have a down pipe, CAI (Cold Air Intake) and Exhaust work done?? (also upgraded brakes) mk6 gti dsg

[@charlessprinkle2494]

yes, skip a stage 1 if you already have a downpipe installed (pretty much only thing needed for s2).

[@aldocabrera9603]

@@charlessprinkle2494 wich tune goes better with a down pipe for stage two?

[@susanstrong2221]

I have had a JB4 in my MK7 Golf R for a year and half almost, I've got to give my two cents on it lol. I have been running map 6.... Probably not a safe amount of boost, does it make my car faster? *YES.* Does it make my car the fastest it CAN be? *NO!* If you want your car to gain some quick power on a tight budget and don't have to much other mods (Bolt ons) done then JB4 is the way to go. But when you start to want more from your car and you have more bolt ons and want to get to "Actual" staged tune than you are going to want to get a flash, not a piggy back. Does the warranty thing matter? Do you even have warranty? Honestly I don't even know if I do, I think I have like 30000 miles left and I only have drive train, I do all of my work/ maintenance in my garage by myself, so I don't care to much, but if you don't like getting your hands dirty when you need to and you find yourself going to the dealer for stuff to get done, then probably stick to the JB4 where it is hard to detect. Either way, get the water pump done before you do any tune, you will thank me later. I am going to get an actual tune, probably Unitronic, I like JB4, but a remap or flash is just better in the long run even if it is more money. Plus you can get pop/crackles, TCU and ECU tunes etc...

[@jonslade2209]

So why exactly do VWs have a flash counter? Is it just to make sure cars aren’t being flashed with performance tunes and getting certain work done under warranty?

[@LucasHuang]

why is a good question lol. it's like why does BMW not have dip sticks any more ¯\_(ツ)_/¯

[@Spartan117A51]

So is this tune a definite new experience from stock? Just opening up the car here and there and having fun once in a while is what I'm looking for.

[@phogetaboutit]

Hey Lucas, I was thinking of a jb4 tune. Did it make a decent amount of noticable gain? And would it hurt to have a dsg tune with jb4?

[@LucasHuang]

i mean idk why you'd want to. the biggest reason people do jb4 is cause they want more power but keep their warranty. a dsg tune gets flashed in your ECU so that might be grounds to void your warranty. at the same time if you get a DSG tune with a jb4 tune then you might as well get a stage 1 with dsg tune; it'll cost the same

[@koston777]

Go for it. Its def. worth it.

[@YTB_JSNFARRELL]

JB4 does not require a DSG tune. Have two Mk7.5 GTIs with DSGs running JB4 on Map3 (latest firmware maps) without a single problem. As mentioned earlier, tunning will lead to warranty issues if that is a concern. Manual on the other hand may have a problem.

[@stephenpettitt5765]

Remove the JB4 before you return the car to the dealer for servicing and warranty. The JB4 leaves no fingerprints. It appears to the dealership computer as a standard non tuned vehicle.

[@michaelconnolly9557]

Thinking of a APR tune for my 2015 Gti but i hear the Turbos on these early models are fragile. Only 30,000 miles on the car. Any views on this ?

[@LucasHuang]

surprised it haven't blown by now. was it ever replaced with the update one?

[@michaelconnolly9557]

@@LucasHuang bought the car 2 years ago with about 20,000 on it so i dont know if it was ever replaced. Few months warranty to go then a tune maybe ! Was there a recall to replace the Turbo? The dealer never said anything to me ?

[@LucasHuang]

not an official recall that i know of but it was just a common known issue. maybe there's a way you can check if you run your vin.

[@michaeleverson3801]

I'm in the same boat with my 2015. I kinda feel like I'd just wait until I can afford an IS38, then tune. That way, the turbo isn't something to worry about and you'd get WAY more out of the tune.

[@michaelconnolly9557]

@@michaeleverson3801 That might be the way to go Bud. The only thing that puts me off is the cost. Turbo, Tune, Downpipe, Airbox and possibly an Intercooler. Plus install. It's going to add up !

[@ganuv]

He’s actually wrong on the warranty issue, the jb4 is untraceable since you can always remove it from the vehicle and a flash is Traceableb, plus a remap tune is way more expensive for basically the same power, some tuners can destroy your car since some don’t know what their doing. I personally have the TDI tuning box and I’m extremely impressed with it ! Very good results

[@liamd55]

I'm thinking of a tdi tuning box, what car do you have it on? Have you had any issues? Is the jb4 similar in principle to the tdi tuning box?

[@dirtyasianmafia2310]

He literally said what you said about the warranty

[@anthonylackey1141]

APR stage one does not need a TCU tune on DSG

[@nicholasoliver3916]

Anthony Lackey lol you won’t understand until you feel the difference between stage 1 without the TCU and Stage one with the TCU. Also, I think it’s recommended by most tuners.

[@anthonylackey1141]

I have a TCU tune, I'm stage 2 rn through APR and had it stage one for over a year and DSG doesn't need to be tuned until stage 2, just if anyone is thinking about going that route, saves quite a bit of money and you still get great power gains.

[@Jesusprayerwarriorbw]

My 15 R had Unitronic stage 1.5 then 2. Loved it! More power baby!

[@von6164]

What about Integrated Engineering?

[@wavy518]

What about it?

[@gus_0_0gti84]

What about UM tune ?

[@LucasHuang]

what about it...? lol

[@phillmqb7518]

I'd rather UM then any other if i was pushing my car to the max. Of the shelf tune if I just want a tune and I'm not looking to if my car completely dialed in.

[@paulwilliams6534]

Not a good experience from me. EQT, 5150, and Sneeky are all very capable tuners for maxing the engines potential.

[@FrankA-973]

I am UM tuned and its absolutely amazing...stage 2 with DSG tune. Serious power and crisp shifts. My tuner has the world record Golf R and he has his car tuned by the guy who creates the files for UM. Not sure anything else needs to be said.

[@ForRJ]

Here is a story about flashed ECUs, I am a Sales Manager for Honda(I know is a different brand) another Manager bought a Type R when it came out(recently traded for a Track Hawk) and his wing started flapping one day, he had his Ecu jail broken with a Hondata tune(he felt that my car was faster so he had to tune it) while in the dealership American Honda wanted to get into the Ecu and the Master Technician found it add, he said they normally don’t do it unless is a powertrain claim, he asked why, and they said they weren’t going to cover the claim without reading the Ecu, the master tech let my coworker know, he didn’t care, and they jumped into the Ecu, I am sure they found out what it had and flagged the Vin for a future claim powertrain related claims, just letting people know, this things do happen specially on enthusiasts cars.

[@Redk00laid]

Good informative video straight to the point. More people need to be like this. Thank you

[@BigGuyRacing74]

JB4 comes with 8 tunes now FYI.

[@LucasHuang]

lol oh shit i've been out of the loop for too long

[@michaellyons2289]

How many are for custom mapping??

[@wesleyhunter501]

@@michaellyons2289 I believe just one. Get back at ya with facts

[@Tiralful]

@@wesleyhunter501 10 months later. *crickets*

[@wesleyhunter501]

@@Tiralful ya just one is custom that you change go stage 2 an stack it that's what I'm on 👌

[@blank7137]

Man i want to get a JB4 so bad because i like the numbers i see of HP increase but at the same time ive heard people getting their warranty canceled. i dont think im a super agressive driver so i dont think i would cause a transmission, engine, etc. Problem but ANYTHING can happen. So ive been looking at a Neuspeed power module which seems safer since it only uses 2 sensors. Its a safer option but a little less power.

[@MeltingRubberZ28]

Definitely the opposite. Less sensors means the module has little idea what the engine is actually doing. JB4 is untraceable once removed, and actually keeps an eye on fueling, knock, etc.

[@jeffkincaid1]

Also the fact that you have to do a wire tap with this setup, so its a bit off-putting

[@MeltingRubberZ28]

@@jeffkincaid1 there is a harness you can buy on eBay that's plug and play. It's a small extension for the O2 and has the wire tapped into the extension.

[@mik55tv22]

@@MeltingRubberZ28 incorrect Nuespeed is way less detectable than Jb4 most VW dealerships now can detect jb4 even if removed but not nuespeed since they're connected to less sensors and connected to sensors less detectable by the system

[@MeltingRubberZ28]

@@mik55tv22 there is not a single recorded case of a properly installed and removed JB4. Quit spreading lies.

[@jerry3605]

Got uni stage 1+ on mine! But now I cant decide on what rim size.... need help I want a really good fitment should I go 8.5 et45 or 8.5 et 35 on my vwr springs? My buddy has a golf r with enkei rpf1's 18x9 et 35 and those fit really nice with finder screw mod but idk if gti's have different specs.

[@jaimiebanks]

I had 18x8.5 et35 on VWR springs looks good and no rubbing what so ever..... now I'm bagged and I'm going to 18x8.5 et45 in front to tuck

[@jerry3605]

@@jaimiebanks any spacer in back then?

[@jaimiebanks]

@@jerry3605 I didnt run spacers in the back but you could get away will it if u want.

[@juliansdiamonds]

Great info !!!!

[@martinsuter3240]

why do i dont need a dsg tun. with the jb 4?dont unterstand that. tganks

[@SonOfTheDawn515]

Because the power increase doesn't impact the DSG like it does with a manual.

[@michaelconnolly9557]

I'll check it out when the car comes out hibernation from our Canadian Winter.....thanks !

[@joshandrade7052]

You should compare tunes.

[@LucasHuang]

i've def thought about it but in terms of practicality it doesn't really work. - one way to compare tunes would be to compare it on paper and get super technical about it which i've never really cared for. i'm not one to argue about what % to put the air fuel ratio at 3000rpm to make the tune better. - the other would be to do roll racing with it but that's hard to do in terms of camera production too cause it'll mostly happen at night which the quality wouldn't even be good. then it's hard to find someone with the same mods as me and it'll end up mostly being a dsg vs manual type video

[@maximumguitarage]

Great video ! Thank You

[@bigboom4684]

You did not explain that correctly it doesn't trick anything

[@lucienl9465]

Unitronic is still babe, bit less power more, reliability

[@mik55tv22]

Not really both put out same power numbers but APR seems to be the safest route since they provide you with a warranty themselves

[@lucienl9465]

@@mik55tv22 only for 87

[@MrJaminx2]

No facts or proven data in this video.

[@arenji05]

Nice shirt Lucas

[@robzamora2334]

Too much blah blah in between info