The F8x M3/M4's are an 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.

• 100% 304 stainless steel construction
• Computer controlled valve limits noise during low speed driving; valve opens fully during high-load conditions to allow free flow
• Dinan exhaust is 3 lbs lighter than stock
• Drone abatement technologies used to reduce cabin resonance
• Enjoyably louder, sporter sound
• More Power: +5 HP
• Operation of exhaust valve is unchanged so exhaust tone can be adjusted via the M-Drive settings.
• Quad 3.5" black ceramic coated, or polished stainless, laser engraved exhaust tips
• Stock exhaust valve actuaters are reused
• Twin secondary exhaust valves with a whopping 76mm diameter, making them 45% less restrictive than the OE valves.
• Uses the factory brackets and hangers for a factory-like fitment