Kia / Hyundai / Genesis Turbo JB4 Performance Tuner (V1)Power gains of up to 100hp and 100tq to the wheels on a stock vehicle The 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 for optimal performance and reduced turbo lag. It features a 64mhz processor allowing sensors to be sampled 1000 times per second using dedicated 10 bit digital to analog converters, ensuring smooth and