Remus Axle Back System left/right with integrated valves - BMW 3 Series F80 M3 | 4 Series F82 M4 Tailpipe Finish:102mm Straight Cut Through careful remapping of the

Through careful remapping of the factory BMW DME tables

and an X-pipe that incorporates high-flow 100 cpsi sports catalytic convertors and resonators

The sporty sound is achieved from the accurate selection of the piping sections

or with a specific ECU tune

Remus Axle Back System left/right with integrated valves - BMW 3 Series F80 M3 | 4 Series F82 M4 Tailpipe Finish:102mm Straight Cut Through careful remapping of theThe activation of the valve is carried out using the original actuator via the vehicle onboard electronics. Axle back system (with EC homologation): 089014 0500 + tail pipe set! The original exhaust will need to be cut at the manufacturer marked cutting point! Tube diameter: Original tube 65 mm REMUS tube 70 mm Features Aggressive racing sound Shot blasted surface, 100% stainless steel Performance increase, low back pressure Light weight construction