RENNtech | Stainless Steel Sport Mufflers | E 63 AMG | S212-Wagon | 5.5L BiTurbo V8 | M157 porsche-cayenne--9ya---2018-present--cayenne-turbo-esr9795870 With the proprietary RENNtech ECU

With the proprietary RENNtech ECU Tuning the X253 - GLC63 AMG 4MATIC+ gains up to +75 HP and +113LB-FT

The power and torque gains of the BMW M3 with the Evolution system are just amazing

throttle mapping

The maximum power number reached with the RENNtech ECU Upgrade for the AMG GT-S is 601 HP and 582 LB-FT

RENNtech | Stainless Steel Sport Mufflers | E 63 AMG | S212-Wagon | 5.5L BiTurbo V8 | M157 porsche-cayenne--9ya---2018-present--cayenne-turbo-esr9795870 With the proprietary RENNtech ECURENNtech Stainless Steel Sport Mufflers for the 212 E 63 AMG BiTurbo Wagon 2014+ FaceLift. Gains: up to 10HP & 15 TQ. RENNtech T 304 stainless steel (SS) sport mufflers are hand made and rigorously tested to remove any unwanted resonances in the cabin to deliver a deep sound that keeps with the character of a luxury performance vehicle. Our mufflers with 2 3 4 inch diameter tubing offer lighter weight than the stock exhaust and improve performance by