RENNtech R3 Performance Package | C190 | AMG GT Black Series | 1,066 HP / 831 LB-FT | 4.0L V8 BiTurbo | M178 | MY2021 mercedes-benz-c-class--205-sedan---2015-2022--c-63-amg-biturbo-esr5379888 Gains: +11HP & 14LB-FT

Gains: +11HP & 14LB-FT

RENNtech's Boost pressure gauge offers direct visual indication of your CLA's turbo performance and available boost pressure

Gains: +20HP & 14 LB-FT

The RT Performance Brake Rotors are an upgrade and direct replacement for the OE brake rotors with no modifications necessary

The maximum power number reached with the RENNtech ECU Upgrade fot the W205 - C 63 AMG is 601 HP and 657 LB-FT

RENNtech R3 Performance Package | C190 | AMG GT Black Series | 1,066 HP / 831 LB-FT | 4.0L V8 BiTurbo | M178 | MY2021 mercedes-benz-c-class--205-sedan---2015-2022--c-63-amg-biturbo-esr5379888 Gains: +11HP & 14LB-FTIncludes 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