As a leader in tuning and calibration, Weistec Engineering is proud to offer tuning packages for the naturally aspirated M156/M159 vehicle lineup.

We have created a strong yet reliable tuning solution that utilizes the same calibration technology that has been applied to our Supercharger System. With a keen understanding for optimal running conditions for the M156, we have revised many features of the ECU which creates a significant increase in horsepower to the wheels on 91 octane and is street legal.

CARB EO# D-691-3

The Weistec Upgrade Promise

Customers who purchase our ECU Upgrades will receive credit towards the purchase of any Weistec M156 Supercharger System, if you are thinking of supercharging your car in the future and are not ready for the purchase, this is a good way not to spend money twice while making more power right away.

KEY FEATURES:

• Increased Horsepower

• Increased Torque

• Eliminate Top Speed Limiter

• Increased Throttle Response

• Optimized Fuel and Spark

• Credit towards M156 Supercharger Systems

*Power gains vary based on model, modifications, fuel, and running conditions.