quick view Choose Options JB4 JB4 Tuner for 2020+ Toyota Supra Mk5 MSRP: $569.00 - $678.00 Power gains of up to 100hp on a stock vehicle without the risks of flashing! Units shipped 3/5/2021 or later include a free electronic wastegate (EWG) connector preinstalled in the JB4 harness! The JB4 is the most advanced and highly featured tuning... Choose Options Add to Wish List Add to My Wish List Create New Wish List Compare
quick view Choose Options JB4 JB4 Performance Tuner Kia / Hyundai / Genesis Turbo MSRP: $529.00 - $678.00 Power gains of up to 100hp and 100tq to the wheels on a stock vehicleThe JB4 is a plug and play Kia / Hyundai tuner that plugs into easy to access sensors in the engine bay and works with your factory ECU tuning to remap your boost, timing, and fueling... Choose Options Add to Wish List Add to My Wish List Create New Wish List Compare