German Special Customs tunes Mercedes CLS 63 AMG to make 740-hp
A new tuning kit has just dropped for the Mercedes CLS 63 AMG from tuning house German Special Customs. Engine mods start with the model’s 5.5-liter V8, which gets a sports exhaust systems, an additional water cooler, and bigger turbos. Combined, these mods kick the CLS 63 AMG’s power up significantly to 740 hp and [...]

