RENNtech EVM | Exhaust Valve Module | 222 - S63 AMG Sedan and 217 - S63 AMG Coupe Pre-FaceLift MY2014-17 mercedes-benz-c-class--204-sedan---2008-2014--c-63--amg-black-series-esr3194090 RENNtech Carbon Fiber Wing is

RENNtech Carbon Fiber Wing is available with tall or low style stanchions

3rd generation Diverter Valve RENNtech is able to add up to 91 HP and 132 LB-FT to the 5

and extensive testing we ensure that all RENNtech Performance upgrades offer incredible performance gains as well as rock-solid reliability

Note:  HP and TQ gains calculated by RENNtech are always based on peak stock results measured by RENNtech and upgraded peak results measured by RENNtech

RENNtech EVM | Exhaust Valve Module | 222 - S63 AMG Sedan and 217 - S63 AMG Coupe Pre-FaceLift MY2014-17 mercedes-benz-c-class--204-sedan---2008-2014--c-63--amg-black-series-esr3194090 RENNtech Carbon Fiber Wing isRENNtech 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