The Turbo Tuner is a plug-and-play solution that significantly enhances performance on the BMW 335i. Typical gains are 40 horsepower and 50 ft-lbs of torque. It is designed to be an easy-to-use solution that end users can install themselves. The Turbo Tuner can be installed or uninstalled in seconds. It does not cause any trouble codes and its operation does not leave any trace that it was ever there. The Turbo Tuner is not an ECU re-flash solution. It is an embedded control solution that works seamlessly with the stock ECU. The turbo tuner provides real performance gains while it preserves the smooth and refined character of the car. $450 --- 858 487 0487