BMW F87 M2 3.0L Catback T304 Stanless Steel, Carbon Fiber 3.5" Tips

The Valvetronic Designs Equal-Length Valved Cat-Back Exhaust System is designed to enhance the exhaust note of the BMW F87 M2 Competition and M2 CS (S55 engine), addressing the stock system's "buzzy, raspy" sound. It provides dual sound modes: aggressive and free-flowing with valves open, and quieter, more refined for daily driving with valves closed. The system features an equal-length mid-section with an H-pipe and an axle-back section. It's a direct bolt-on installation, mounting to factory points without permanent modifications, and is 100% reversible. For S55 owners using race or free-flow downpipes, a "2k rpm rasp" may be present during low-rpm shifts, and high-flow (200 cell) catalytic converters are recommended for the most refined tone.