Remus BMW M3/M4 Racing Secondary Cat Back Exhaust System (G80/G81/G82/G83)

Remus BMW M3/M4 Racing Secondary Cat Back Exhaust System is a high-quality, hand-crafted racing system that runs from the secondary catalytic converter all the way to the tips. This system bypasses the factory OPFs, but leaves both cats in place. The secondary cat-back exhaust removes the resonated mid pipe and features a much more efficient design for better airflow. The backbox has been completely redesigned into a twin silencer setup and when the valves are open, the system becomes completely un-silenced.Fitting this system is a good compromise between achieving much better airflow and cost. For the full downpipe-back system that removes the secondary cats, click here.The Racing Rear Silencer offers:- 6mm larger tube diameter- Two smaller silencers in the place of the single factory backbox for better airflow.- No EC type approval – This means the racing system is, generally, not legal for road use in Europe. Should be used for motorsport/track ONLY.PRODUCT SPECIFICATION- Aggressive racing sound- Shot blasted surface, 100% stainless steel- Performance increase, low back pressure- Lightweight construction- Perfect shape and fitment- Handmade in Austria- 24 months warranty- No EC ApprovalCOMPATIBILITY- BMW G80 M3 Saloon (2021+)- BMW G80 M3 Competition Saloon (2021+)- BMW G81 M3 Touring (2023+)- BMW G81 M3 Competition Touring (2023+)- BMW G82 M4 Coupe (2021+)- BMW G82 M4 Competition Coupe (2021+)- BMW G83 M4 Convertible (2021+)- BMW G83 M4 Competition Convertible (2021+)WHAT’S IN THE BOX?- Remus racing rear silencer- 2x Upgraded 76mm valved connection tubes that utilise the OE valve control system- 1x Racing front silencer replacement tube- 1x GPF replacement tube- Choice of exhaust tipsDISCLAIMERThis item is not intended for use on the public road (track use ONLY) as it does not comply with UK emission standards.