Race video showing the difference between a C63 AMG with just an ECU tune and a C63 with an ECU tune plus headers and exhaust
This video comes from two BenzBoost members with modified W204 C63 AMG sedans, users Mthis and JonsC63AMG. The modifications on JonsC63AMG are an OE Tuning ECU tune, everything else is stock. The C63 taping the race belongs to Mthis and has an updating OE Tuning ECU tune along with long tube headers, BMC filters, 3 inch mid pipes, and some lightweight mods. Despite a lead and jump by the C63 belonging to Jon the C63 recording showed the horsepower disparity reeling him in and passing him. Exhaust modifications clearly make a nice difference on the C63 and compliment a tune well.