RENNtech R1 Pkg | C218 | CLS63 AMG | 696 HP / 801 LB-FT | M157 | 5.5L V8 BiTurbo mercedes-benz-sl-class--230---2007-2011--sl-65-amg-esr6280537 Rated by RENNtech: 611 HP

Rated by RENNtech:              611 HP @ 6

Rated by RENNtech:              670 HP @ 5

The RENNtech Sport Muffler System for the W205 - C 63 AMG Sedan comes with an integrated valve system and utilizes the electronic OEM actuators

AMG GT S MY2015-2017 Pre-FaceLift

RENNtech R1 Pkg | C218 | CLS63 AMG | 696 HP / 801 LB-FT | M157 | 5.5L V8 BiTurbo mercedes-benz-sl-class--230---2007-2011--sl-65-amg-esr6280537 Rated by RENNtech: 611 HPR1 includes: ECU Upgrade, Diverter Valve and Air Filters Gains: +146HP; +257LB FT The RENNtech R1 Performance Package is the perfect entry level performance upgrade for the E 63 AMG. With the combination of the RENNtech ECU Upgrade and the latest, 3rd generation Diverter Valve RENNtech is able to add up to 146 HP and 257 LB FT to the 5. 5L V8 BiTurbo engine (compared to RENNtech rated stock performance). The addition of the upgraded diverter valve