Evolve Automotive N54 Downpipes
Evolve 3" catless downpipes for the N54 1M | 135i | 335i in T301 Stainless steel. By eliminating the restrictive catalytic converters in the factory downpipes, back pressure is reduced significantly which results in faster spool, an increase in power & a more aggressive exhaust note.
- T301 Stainless Steel
- 3" Downpipe design with 2.5" flange
- Gaskets and new bolts provided
- Fits both RHD and LHD
- Adds approx 10 BHP & 10 lb.ft torque
- ECU Tune recommended