M156 ECU Upgrade

  +47 Wheel Horsepower, +32 Wheel Torque As a leader in tuning and calibration, Weistec Engineering is proud to release tuning packages for the naturally aspirated M156/M159 vehicle lineup. Their ability to successfully innovate and create the world's first 50 state legal supercharger system for the 6.3L AMG has allowed them to further identify and understand the complex factory modules. Weistec Engineering has 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, they have revised many features of the ECU which creates an astounding 441 horsepower to the wheels on 91 octane. 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 to not spend money twice, while making more power right away. Have a problem with your current tune you purchased from someone else? Send in your ECU for a free diagnosis. *Power gains vary based on model and modifications. ECU Tuning Process: How do I get my ECU tuned? Key Features: +47 Wheel Horsepower +32 Wheel Torque Eliminate Top Speed Limiter Increased Throttle Response Optimized Fuel and Spark Credit towards M156 Supercharger Systems   Documentation: weistec_w204_c63_ecu_removal_manual (287 KB) Download weistec_w209_clk63_ecu_removal_11_5_11 (532.2 KB) Download weistec_w212_e63_ecu_removal (474.9 KB) Download weistec_w211_e63_ecu_removal (782.3 KB) Download weistec_r230_sl63_ecu_removal_manual (482 KB) Download m156_calrequest_1 (410 KB) Download weistec_w215_cl_ecu_removal_manual (369.6 KB) Download