$1,699.00 House of Power Stage 1 Mercedes E43 AMG & E400 2017+ECU Tuning (M276) Want to add even more Horsepower? Upgrade to Stage 2 ECU Tune. (Catless Application) Adds an approx. 30-40 additional Horsepower! Check the box below: Upgrade to Stage 2 + $399.00 Product price Additional options total: Order total: Mercedes E43 & E400 2017+ Stage 1 Performance ECU Tune (M276) quantity — OR — Add to cart Category: Mercedes E-Class Tags: benz, Dyno, e400, e43, ecu tune, m276, mercedes, stage 1, stage 2, tune, w213 Description Description +80 Horsepower +100 Torque Performance ECU Tune for the Mercedes E400 & E43 AMG M276 Engine (2017-present) Eliminate Top Speed Limiter Increased Throttle Response Optimized Fuel and Spark Optimized for 93 Octane Related products BMW 335d (2009-2013) Stage 1 Performance ECU Tune (N57) $1,099.00 Select Options Nissan 370z EcuTek Tune $1,000.00 Select Options BMW 535d (2009-2013) Stage 1 Performance ECU Tune (N57) $1,099.00 Select Options BMW 135i Stage 1 Performance ECU Tune (N54) $599.00 Select Options