Armytrix BMW M3/M4 Cat-Back Exhaust System is a truly incredible system for the F8X platform, offering a noticeable power gain, weight saving and noise enhancement over standard.
The system has been thoroughly engineered to reduce back pressure, maximising air flow efficiency for better throttle response and faster turbo spool. It offers an upgraded valve system that is fully controllable using the Armytrix key fob, allowing you to take ownership over your vehicle's exhaust sound.
Crafted using high-grade aluminium, the system is highly resistant to corrosion and extremely durable in the long-term.
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.