Fabspeed Primary Cat Bypass Downpipes for BMW M3/M4 (F8x) [S55]
Eliminate the heavy and restrictive factory catalytic converters with straight-pipe, high flowing stainless steel downpipes for maximum power and an exhilarating sound.
- Fits all BMW F8x M3 & M4 vehicles (2015+)
- The perfect option for track cars and those who seek the ultimate in aggressive exhaust sound
- Mandrel bent pipes with minimal welds to minimize failure under regular use and increase flow
- Designed to fit seamlessly with the factory exhaust system, or as an add-on to Fabspeed's Valvetronic Exhaust System. (Also compatible with any other aftermarket exhaust system that is designed to fit like OEM.)
- Replaces the restrictive factory catalytic converters with a straight-through "straight-pipe" design for maximum power and exhaust sound.
- This product replaces the factory catalytic converters and may trigger a Check Engine Light.
- BMW M3 (F80) [S55]
- BMW M4 (F82/F83) [S55]
- BMW M3 (F80) [3.0L I6 Twin-Turbo S55]
- BMW M4 (F82/F83) [3.0L I6 Twin-Turbo S55]