The Danish tuning firm Kleemann has come up with a tuning program specifically designed for the factory hot rod, Mercedes Benz C63 AMG. Kleemann left the exterior untouched, except for a set of 20 inch 10 spoke alloys. The real work was put in to a four stage engine tuning package for the 6.3 liter AMG hand built V8 that will raises output from 457 hp to a roaring 620 hp.

Engine tuning programs after the jump.

Kleemann engine tuning program for the Mercedes Benz C63 AMG.

Stage 1: Reprogrammed ECU and high flow air filters; 540 HP

Stage 2: Higher flowing headers, down pipes and catalytic converters; 580 HP

Stage 3: Sport camshafts; 600 HP

Stage 4: Higher flowing throttle body; 620 HP