B/Motorsports JB4 BMW Performance tune including Bluetooth connect/kit
N54 Burger MotorsportsJB4 Performance tuner for BMW 335i. Adds 80 hp to the wheels on stock car. Simple plug and play installation with several performance maps that can be selected from the drivers seat on the fly. Also includes several other great user friendly features for further performance tuning. Only been in my car for three months when I decided to do more major upgrades. If you want to improve your car's performance significantly without major upgrades at a very low cost, try this, it