
This primary cat-back system for the S58-powered BMW X3 M and X4 M LCI replaces the factory exhaust from the primary catalysts back, improving exhaust flow and delivering a more aggressive tone, with a choice of tailpipe finishes.
Please note: Fits from the primary catalysts back, replacing the factory secondary catalyst/GPF section. Designated a race product for off-road/motorsport use and not E-marked; an ECU remap may be required.
Features
- Fits from the primary catalysts back
- Choice of tailpipe trims
- Manufactured from 304L aircraft-grade stainless steel
- 80mm pipe diameter
- Approximately 2 to 3 hours to fit (including removal of the OE system)
- Race product – not E-marked
Fitment
- BMW X3 M (F97 LCI, S58)
- BMW X4 M (F98 LCI, S58)