i want a jb4 for my 2019 gt2 awd

[sammmi]

to people who have done this tune. worth it? How much was the hp and torque gain? Does it remove the top speed limiter?

 

[billy_vk]

Can't believe nobody has responded to this... yes, worth it. A great way to add excitement back to driving the car. No, it doesn't get rid of the speed limiter sadly. I have the JB4, exhaust, plugs, intakes, intercooler and run on big wheels. The car runs 11.91 which seems pretty quick for being heavy. The car would not run anywhere near that before the tune.

 

[bdrick68]

Yes, it's very well worth it! The performance gains are incredible! I did it to my 2019 Stinger GT2, then sold that vehicle, removed it and put it on a 2022 Genesis G70 Sport Advanced that I purchased. I have since traded that car in on a 2024 Genesis G80 last week. It's got the 3.5T Motor in it, so this JB4 won't work on it. So I now have a the JB4 with Blue Tooth, the BMS cold air intakes and pedal tuner for sale. I'd sell you the entire package for $475. To buy all of this new would be over $1300.

 

[sammmi]

Can't believe nobody has responded to this... yes, worth it. A great way to add excitement back to driving the car. No, it doesn't get rid of the speed limiter sadly. I have the JB4, exhaust, plugs, intakes, intercooler and run on big wheels. The car runs 11.91 which seems pretty quick for being heavy. The car would not run anywhere near that before the tune.

thanks man. I have my hks plugs on the way! what would be your recommendations for other supporting mods mods before i slap on the jb4?

 

[Thomby]

It's got the 3.5T Motor in it, so this JB4 won't work on it.

Are you sure it isn't just a matter of needing to swap out the chip on the circuit board? And maybe different sensor plugs?

Apologies if you've already done your research, but if not it may be worth reaching out to BMS...you may be able to update it to the 3.5 for far less than a whole new system.

 

[billy_vk]

thanks man. I have my hks plugs on the way! what would be your recommendations for other supporting mods mods before i slap on the jb4?

Well, intakes and exhaust should be on your list. More air in and more air out helps. Then intercooler and from there it becomes an addiction.