RENNtech R2 Pkg | W221 | S 63 AMG | Sedan | 716 HP / 826 LB-FT | M157 | 5.5L V8 BiTurbo audi-rsq8--4m---2019-present--4-0l-v8-tfsi-esr8235716 AMG M177 -engines (2020+) :

AMG M177 -engines (2020+) : C 63 | GLC 63 | E 63 | GT 63 | S 63 | G 63  |

The addition of these headers creates a deep distinctive yet harmonious sound which is entirely unique to any other sports car on the road

Professional installation is recommended

Rated by RENNtech (peak @wheel):               854 whp @ 6

RENNtech R2 Pkg | W221 | S 63 AMG | Sedan | 716 HP / 826 LB-FT | M157 | 5.5L V8 BiTurbo audi-rsq8--4m---2019-present--4-0l-v8-tfsi-esr8235716 AMG M177 -engines (2020+) :R2 includes: ECU Upgrade, Diverter Valve, Air Filters and Sport Mufflers Gains: +153HP; +232LB FT The RENNtech R2 Performance Package is the evolution stage of the R1 Pkg. The R2 not only brings additional power, but also gives the car a deeper sport sound that keeps with character of a luxury performance vehicle. Included in the R2 Package are all upgrades from the R1 Pkg, ECU Upgrade, Diverter Valve and Air Filters, as well as the Carbon Fiber Air