
This non-resonated secondary catalyst bypass for the BMW G87 M2 replaces the factory secondary catalysts with straight-through stainless tubing, improving exhaust flow and delivering a noticeably louder, more aggressive exhaust note.
Please note: This is a race product intended for off-road/motorsport use only, is not E-marked for road use, and may require an ECU remap to run correctly without fault codes. Designed to connect to the original equipment axle-back system only. When installed with Milltek downpipes, part MSBM406 is not required.
Features
- Removes the secondary catalysts for improved flow and sound
- Non-Resonated design
- Manufactured from 304L aircraft-grade stainless steel
- 101.6mm (4") pipe diameter
- Approximately 1.5 to 2 hours to fit (including removal of the OE system)
- Race product – not E-marked
Fitment
- BMW M2 Coupé (G87)