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 Rated by RENNtech: 734 HP

Rated by RENNtech:              734 HP @ 6

0L I6 Turbo EQ Boost | Up to 541 HP / 571 LB-FT | Gains: +48 HP & +54 LB-FT

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

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

The maximum power number reached with the RENNtech ECU Upgrade for the GLS 63 S AMG EQ Boost+ is 745 HP and 767 LB-FT

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 Rated by RENNtech: 734 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