RENNtech | Sound+Style Pkg | S63 AMG Sedan | W222 | 5.5L BiTurbo V8 | M157 mercedes-benz-cls-class--218---2011-2014--cls63-amg-biturbo-esr5204476 With the proprietary RENNtech ECU

With the proprietary RENNtech ECU Tuning the W222 - S63 AMG 4MATIC+ gains up to +87 HP and +44 LB-FT

this is completely normal in carbon fiber manufacturing because of the nature of the material and production process

222 - S 63 AMG 4-MATIC

BMC Air Filters: BMC air filters are designed to last longer and create better airflow than OEM paper filters

Rated by Mercedes-Benz:      518 HP @ 5

RENNtech | Sound+Style Pkg | S63 AMG Sedan | W222 | 5.5L BiTurbo V8 | M157 mercedes-benz-cls-class--218---2011-2014--cls63-amg-biturbo-esr5204476 With the proprietary RENNtech ECURENNtech Sound and Style Package for the W222 S63 AMG Sedan. Including Stainless Steel Sport Mufflers w Electronic Valve System and Carbon Fiber Rear Decklid Spoiler The RENNtech Sound + Style Package for the W222 S63 AMG Sedan brings the perfect combination of styling and sound upgrade to one of Mercedes's most dynamic cars. This highly integrated pre preg carbon fiber spoiler compliments the sophisticated and refined S Class exterior design