RENNtech R3 Performance Package | C190 | AMG GT Black Series | 1,066 HP / 831 LB-FT | 4.0L V8 BiTurbo | M178 | MY2021 porsche-cayenne--9pa----1-gen--gts-esr3998301 larger tube diameters-measuring not 55

larger tube diameters-measuring not 55 but 60 mm-and reduced power-consuming back pressure

2003-2010 Audi

CLASS C SW (S 203) 350 V6 [Needs 2 Filters] (HP: 272 | Year: 05 > 07)

RENNtech R1 Performance Package for the C205 - C 63 AMG

Increased speed limit

RENNtech R3 Performance Package | C190 | AMG GT Black Series | 1,066 HP / 831 LB-FT | 4.0L V8 BiTurbo | M178 | MY2021 porsche-cayenne--9pa----1-gen--gts-esr3998301 larger tube diameters-measuring not 55Includes Upgraded Turbos, ECU Upgrade, Downpipes, Performance Clutch, TCU Tune, BOV Adapters, BMC Air Filters. Gains: Up to +321 HP +185 LB FT Powered by RENNtechs R3 Performance package the 2021 AMG GT Black Series generates 1066 horsepower and 831 lb ft of torque resulting in the most powerful vehicle developed by RENNtech and the most powerful street legal AMG in the World. Measured on RENNtechs in house DYNO the R3 upgrade increases the power