D660-0050-BLK – Dinan Free Flow Stainless Exhaust with Black Tips for BMW F80 M3 F82 F83 M4
The F8x M3/M4’s are a audible treat right off the showroom. Coupled with a Dinan exhaust however they become a symphony of aural delight that even the most discerning ear will find pleasing.
- Maximum gain of 5 HP
- Sportier sound
- 100% 304 Stainless Steel Construction
- Quad 3.5" laser engraved black ceramic tips with Dinan logo
- Computer controlled valve limits noise during low speed driving; valve opens fully during high-load conditions to allow free flow
- Stock exhaust valve actuators are reused
- Operation of exhaust valve is unchanged so exhaust tone can be adjusted via the M-Drive settings.
- Dinan exhaust is 3 lbs lighter than stock
- Twin secondary exhaust valves with a whopping 76mm diameter, making them 45% less restrictive than the OE valves.
- Includes mounting hardware
Dinan’s Free Flow exhaust system features 100% stainless steel construction measured to exact specifications to ensure proper fit via factory hangers and mounting points. Dyno tuned for maximum exhaust flow with minimum backpressure, this system is designed to provide a more aggressive sound under acceleration, while reducing drone inside the vehicle, thanks to computer controlled valves that limit noise during low speed driving and open fully during high-load conditions to allow free flow. The exhaust gasses exit through larger laser engraved black ceramic quad tips.