Wirelessly connect your JB4 to your phone!
For JB4 systems produced 2017 and later. Please check board diagrams to properly identify your JB4 before ordering.
Alter parameters and fine-tune � wirelessly!
For use with N54 JB4 systems and any JB4 manufactured prior to 2017. Please check board diagrams to properly identify your JB4 before ordering.
Brand:
ES#:
3508698
Mfg#:
JB4-BT
In Stock
$149.00
This product was last offered at the strikethrough price on 05-12-2026
Plug & play power — gain up to 50 horsepower on a stock car, 100+ horsepower on a modified car!
For vehicles with electronic waste gate; not for sale or use in the state of California.
Plug & play power — gain up to 50 horsepower on a stock car, 100+ horsepower on a modified car!
For vehicles with pneumatic waste gate; not for sale or use in the state of California.
A piggy back tuner that allows you to adjust throttle response for peak performance.
Brand:
ES#:
4884002
Mfg#:
999982BMW
Special Order: No Guaranteed ETA
$259.00 USD
Free Shipping
on orders $49 and up
Lifetime Replacement
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Lifetime Replacement
