Remus BMW M3/M4 Racing Cat Back Exhaust System is a state-of-the-art exhaust system for the G8X platform. This is exactly the same system as the racing GPF-back system with the addition of a GPF replacement tube, as well as a secondary cat replacement tube.
The addition of these upgrades offers the highest reduction in back pressure, much higher tuning potential and a greater-enhanced exhaust note.
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.
All in stock products ship the same day if ordered before 2pm GMT
For out of stock items we will contact you with an estimated wait time if not otherwise specified above.
We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy
All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.