Dinan Free Flow Axle-Back Exhaust - 2015-2020 BMW M3/M4

Mfg Part #

D660-0050

NP#

DIND660-0050

Brand

Fits 2015 to 2020 BMW M3, M4. See every vehicle

• More Power: +5 HP
• Drone abatement technologies used to reduce cabin resonance
• Enjoyably louder, sporter sound
• Quad 3.5" black ceramic coated, or polished stainless, laser engraved exhaust tips
• Computer controlled valve limits noise during low speed driving; valve opens fully during high-load conditions to allow free flow
• Stock exhaust valve actuaters 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.
• 100% 304 stainless steel construction
• Uses the factory brackets and hangers for a factory-like fitment