C117 CLA45 CATBACK EXHAUST 25% larger exhaust volume capacity over stock Straight through performance, no mufflers with valves open Increased turbo spool and engine sound Less restriction = Increased power ...
W176 A45 CATBACK EXHAUST 25% larger exhaust volume capacity over stock Straight through performance, no mufflers with valves open Increased turbo spool and engine sound Less restriction = Increased power ...