Experience with JB4 modification

[dpm7471]

Hello,

Just wondering if anyone Has modified their engine with the JB4 tuner. If so, can you comment on what you like and dislike about it?

Has it caused any damage to any engine components?

Thanks in advance

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[UWU-mancer]

A few friends have on Audis and vw’s

I don’t recommend. Fooling the ecu to get more boost is not how to do things. Also, if you’re worried about warranty. I promise you, the dealerships can absolutely see if you had one plugged in.

do things right and be willing to take responsibility bro (respectfully speaking, of course)

 

[chopsuey34]

The community overwhelmingly uses Hondata or KTuner. I'd recommend those before JB4.

PS I didn't answer your questions.

 

[LookAtMyHorse]

A few friends have on Audis and vw’s

I don’t recommend. Fooling the ecu to get more boost is not how to do things. Also, if you’re worried about warranty. I promise you, the dealerships can absolutely see if you had one plugged in.

do things right and be willing to take responsibility bro (respectfully speaking, of course)

There's nothing wrong with a man-in-the-middle attack as long as you intercept and recompute *everything* without adding too much latency, and these guys have been doing this for a while. That said, even though I ran a JB on my 335xi, I would probably just get a Hondata or Cobb for this car.

 

[UWU-mancer]

There's nothing wrong with a man-in-the-middle attack as long as you intercept and recompute *everything* without adding too much latency, and these guys have been doing this for a while. That said, even though I ran a JB on my 335xi, I would probably just get a Hondata or Cobb for this car.

There’s a lot wrong with it. It’s performance is incredibly unrefined. Reliability is a major concern, ask the Veloster n crowd who early adopted. Stinger guys with the v6 would go onto limp mode on track. The tq spikes destroying Elantra n dual clutch tran’s clutch packs And the list goes on.

to be real with you tho. I never tried one. Or any piggy back type device for decades. Clearly you have. That’s dope bro but me? I need shit done right. This car is too expensive to do em half asses. The days of wiring a greddy e-mange incorrectly over and over and over only to finally get it right and be incredibly underwhelmed are behind me dude.

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