Weistec M156/M159 ECU Tune

The Weistec Mercedes M156 ECU Tune is a software tuning package designed for the naturally aspirated M156/M159 vehicle lineup. It utilizes calibration technology similar to that used in Weistec's Supercharger System to revise ECU features for increased horsepower and torque. This tune is street legal, designed for 91 octane fuel, and includes CARB EO# D-691-3.

Key features include increased horsepower and torque, elimination of the top speed limiter, improved throttle response, and optimized fuel and spark settings. Customers who purchase this ECU tune will receive credit towards the purchase of any Weistec M156 Supercharger System.