RENNtech Long Tube Headers with Downpipes and 200 Cell Sport Catalytic Converters for 204 - C63 bmw-m5--f10---2011-2016--4-4-liter-twin-turbocharged-v8-esr1787958 The RENNtech Power Module (RPM)

The RENNtech Power Module (RPM) ECU tune delivers significant horsepower and torque gains across the entire power band

Transmission Upgrade

Up to 566HP and 518 LB-FT

The result can be summed up in one simple phrase

RENNtech Long Tube Headers with Downpipes and 200 Cell Sport Catalytic Converters for 204 - C63 bmw-m5--f10---2011-2016--4-4-liter-twin-turbocharged-v8-esr1787958 The RENNtech Power Module (RPM)RENNtech Stainless Steel Long Tube Headers with Downpipes and 200 Cell Sport Cats for 204 C 63 AMG. Gaines: +30HP & 30TQ Designed, engineered and manufactured in house specifically for your Mercedes Benz. Our purge welded, ceramic coated long tube headers feature top of the line big tube 2" diameter T 304 stainless steel tubing and are manufactured from the same high quality materials used on all RENNtech headers. We ceramic coat our headers to retain