R2 Performance Package | W204 | C 63 AMG Black Series | 554 HP / 523 LB-FT | 6.3L V8 N/A | M156 mercedes-benz-sl-class--231---2012-2016--sl-550-biturbo-esr8160914 450 LB-FT @ 2

450 LB-FT @ 2

the BMW with the Slip-On Line and Evolution link pipe set is as beautiful as it is powerful

Transmission Control Unit (TCU) -upgrade is engineered for faster and more firm shifts while increasing the torque capacity of the AMG SPEEDSHIFT DCT 7G transmission

Throttle response is also significantly improved

increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles

R2 Performance Package | W204 | C 63 AMG Black Series | 554 HP / 523 LB-FT | 6.3L V8 N/A | M156 mercedes-benz-sl-class--231---2012-2016--sl-550-biturbo-esr8160914 450 LB-FT @ 2R2 Performance Package for 204 C 63 AMG Black Series. Includes ECU Upgrade, Carbon Fiber Air Box, Upgraded Throttle Body and Stainless Steel Headers. Up to 554HP and 523LB FT. RENNtech performance package 2 includes our proprietary ECU tune in addition to our full carbon fiber airbox, 82mm throttle body kit and RENNtech stainless steel headers for a gain of +44 HP and +66 TQ over stock. Performance Package 2 Includes: RENNtech ECU Upgrade Full Carbon