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 RENNtech ECU Upgrade for 211

RENNtech ECU Upgrade for 211 - E 550

BMC Air Filters

523 awhp @ 5

While it is the latest tech for the V5

209 - CLK 63 AMG Black Series

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 RENNtech ECU Upgrade for 211Includes 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