REMUS Racing Non-resonated X-Pipes for BMW F80 M3, F82 F83 M4

When installing REMUS down-pipes with and without the racing catalytic convertors, which are only suitable for closed road driving, it is important to note that ECU tuning is required to ensure that the engine runs and performs efficiently and to ensure that the CEL does not come on.

ATTENTION: Without homologation!
Eliminating front silencer!

Racing cat-back-system (without homologation): 089014 0000 or 089014 0300 + 089014 0500 + tail pipe set! No cutting of the original exhaust system required!

Tube diameter:
Original Ø 65 mm
REMUS Ø 70 mm