RENNtech EVM | Exhaust Valve Module | 222 - S63 AMG Sedan and 217 - S63 AMG Coupe Pre-FaceLift MY2014-17 audi-sq7--4m---2016-present--4-0--v8-tfsi-esr5319158 Rated by RENNtech: 435 HP

RENNtech EVM | Exhaust Valve Module | 222 - S63 AMG Sedan and 217 - S63 AMG Coupe Pre-FaceLift MY2014-17 audi-sq7--4m---2016-present--4-0--v8-tfsi-esr5319158 Rated by RENNtech: 435 HPRENNtech Exhaust Valve Module Permanently Open Exhaust Flaps. 222 S63 AMG Sedan and 217 S63 AMG Coupe Pre FaceLift MY2014 17 EVM Exhaust Valve Module (Remote Controlled) NOT SO FUN FACT: If your Mercedes AMG is equipped with factory exhaust valves, with or without a center console button to open or close them, factory settings do NOT allow the flaps to fully open unless certain speed and or RPM have been reached. For example, while cruising the

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