Interesting test of JB4

[DCV]

Nice video of the JB4 being tested. Impressive gains.

JB4 tests

 

[JLayer]

Still think its unreliable in the long run. Hopefully pricing will come down on global b tuning in the future.

 

[Melon]

The wants for a JB4 for my CT4 BW are high, but the wants for a warranty are higher.
I know it's undetectable but, I'm paranoid all the same.

 

[ngoni]

I know it's undetectable but, I'm paranoid all the same.

There's all sorts of ways manufacturers can detect piggyback tunes. Don't believe the claim that it is undetectable. Just simply watching the high mark of accelerometer past a certain factory threshold can be all GM needs.

 

[Melon]

There's all sorts of ways manufacturers can detect piggyback tunes. Don't believe the claim that it is undetectable. Just simply watching the high mark of accelerometer past a certain factory threshold can be all GM needs.

Exactly, any run back through the logs will show that something is awry.

This only applies to engine issues and the LF4 seems pretty stout.

 

[DCV]

Too bad GM left so much on the table. But the GM HP pecking order must be maintained

 

[XTRMLN]

I have had the JB4 for over a year now. I noticed they updated it recently and they say they have a map for 93octane in the video. I bought mine from tapout and they provided different maps for different octane but suggested changing a couple settings within the stock map for 93 octane. I’m wondering if the updated JB4 is the proper setup or if I should stick with altered Tapout one?? Guess I’ll have to reach out to tapout unless someone here knows the answer.

For me the JB4 makes quite a bit of difference and I added the dtcassasin as I also did downpipes and it’s nice being able to clear codes with a touch of a button instead of opening up the ap every time. I’m less concerned about the warranty as mine is a company car so if anything happens I won’t really be out of pocket. The difference in the car with the JB4 and tap out blue belt plus cf enlarged air intake make the car a different animal and something I’m much more happy with over stock. Warranty on the motor would be nice but I probably wouldn’t have kept the car if it remained stock only. Too big of a difference in fun factor.

 

[AC2024]

I have had the JB4 for over a year now. I noticed they updated it recently and they say they have a map for 93octane in the video. I bought mine from tapout and they provided different maps for different octane but suggested changing a couple settings within the stock map for 93 octane. I’m wondering if the updated JB4 is the proper setup or if I should stick with altered Tapout one?? Guess I’ll have to reach out to tapout unless someone here knows the answer.

For me the JB4 makes quite a bit of difference and I added the dtcassasin as I also did downpipes and it’s nice being able to clear codes with a touch of a button instead of opening up the ap every time. I’m less concerned about the warranty as mine is a company car so if anything happens I won’t really be out of pocket. The difference in the car with the JB4 and tap out blue belt plus cf enlarged air intake make the car a different animal and something I’m much more happy with over stock. Warranty on the motor would be nice but I probably wouldn’t have kept the car if it remained stock only. Too big of a difference in fun factor.

You have a company car blackwing? Where do you work and are you hiring?

 

[XTRMLN]

Hahaha. One of the perks of being the president and majority shareholder of the company…. That’s how I justify the car and mods with my wife, “It’s for work hon”