Stone Exhaust MP505S cat-back for W205, C205 and S205 Mercedes C-Class with M274 or M264 engines. Fast-road or track-day fit - no coding, no drone, no compromise.
Switchable valve control: ON, OFF and AUTO via OBDII remote
One-piece CNC-mandrel bent tubing for flow and fitment
Mechanical TIG welding - built for durability, not just show
OPF delete option included (verify local emissions legality)
