JB4 for Kia / Hyundai / Genesis 1.6T, 2.5T, 3.5T, SmartStream including N (BETA) JB4 $678.00 Power gains of up to 100hp and 100tq to the wheels on a stock vehicle The JB4 is a plug and play Kia / Hyundai / Genesis tuner that plugs into easy to access sensors in the engine bay and works... Add to Cart
JB4 Tuner for 2020-Present Toyota Supra Mk5 JB4 $569.00 - $678.00 Power gains of up to 100hp on a stock vehicle without the risks of flashing! The JB4 is the most advanced and highly featured tuning system for your Toyota Supra Mk5. Power gains are up to 80hp to... Choose Options
JB4 Performance Tuner Kia / Hyundai / Genesis Turbo JB4 $569.00 - $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... Choose Options
JB4 Tuner for 2021-Present Toyota GR Yaris & GR Corolla Turbo JB4 $569.00 - $678.00 Power gains of up to 50whp and 60wtq to the wheels on a stock vehicle without the risks associated with flashing! The JB4 is a plug and play performance tuner that attaches to two easy to access... Choose Options