Dinan - Free Flow Exhaust System - BMW F30 340i & F32 440i

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Dinan engineers designed the BMW F30 340i exhaust to improve exhaust flow by reducing back pressure, resulting in increased power output and a great sporty sound that is civilized when you want it to be, and pleasantly aggressive under hard acceleration. Not only is the tone improved but the additional burbles and pops that come with it are simply intoxicating. Dinan also incorporates a Helmholtz chamber design that reduces resonance or “drone” at low RPM.

The system is built to exacting specifications to ensure perfect fit using the factory hangers. It is made from 100% 16 gauge 304 stainless steel and will resist corrosion for years to come. The design features twin 89mm (3.5") polished (or black) exhaust tips for a tasteful, high-performance look.

Maximum performance gains are 6 horsepower and 5 ft-lbs of torque.

Uses the factory brackets and hangers for a factory-like fitment.
Helmholtz chamber to reduce drone.
Enjoyably louder, sportier Sound
100% 304 stainless steel construction
Twin 89mm (3.5") laser engraved polished (or black) exhaust tips
6 HP @ 6600 RPM, 5 FT-LB
Factory computer controlled exhaust valve is eliminated

Models Supported:
BMW F30 340i
BMW F32 440i

WARNING: May contain items that are found to have compounds and/or chemicals known to the State of California to cause cancer, birth defects, and reproductive harm.
For more info, please visit https://www.P65Warnings.ca.gov.

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