BMW Free Flow Exhaust With Polished Tips (F80 F82 F83 M3 M4) - Dinan D660-0050

A free flowing axle back exhaust with superior quality and workmanship from the experts in BMW tuning, yields a 8-12 horsepower gain over the factory system while significantly improving the sound of your F80 M3 or F82/F83 M4

The F8x M3/M4's are a audible treat right off the showroom floor. Coupled with a Dinan exhaust however they become a symphony of aural delight that even the most discerning ear will find pleasing.

The sound clip can be found here.

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 back pressure, 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 ultra durable polished quad tips.

Every Dinan product comes with our industry exclusive factory matching new car bumper to bumper warranty and is designed and tested in Morgan Hill, California and can be purchased and installed at any Dinan Approved BMW dealership nationwide.

Benefits of the Free Flow Exhaust for the F8x M3/M4:

• Improve performance by up to 5 horsepower
• Sportier sound
• 100% 304 Stainless Steel Construction
• Quad 3.5" laser engraved exhaust polished tips or ceramic coated black 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
• Includes mounting hardware