JB4 Tuner for 2019+ 1.6L Kia K5, Hyundai Sonata, Kona, Elantra, Santa Smartstream 4-cylinder (V3)Power gains of up to 40hp & 60tq to the wheels on a stock 1. 6L 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. Unlike other tuning systems the JB4 includes a fully programmable CANbus system, upgradable firmware, and data logging capability. CANbus allows the JB4