Dinan Free Flow Stainless Exhaust with Polished Tips for BMW F30 340i F32 440i
Dinan engineers designed the F30 340i and F32 440i 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 exhaust tips for a tasteful, high-performance look.
Models
- 2016 - 2018 BMW 340I Sedan
- 2016 - 2018 BMW 340i Sedan
- 2016 - 2018 BMW 340i xDrive Sedan
- 2017 - 2019 BMW 440i Coupe
- 2017 - 2019 BMW 440i xDrive Coupe
Maximum performance gains are 6 horsepower and 5 ft-lbs of torque.
Benefits of the Dinan Free Flow Axle-Back Exhaust for the F30 340i / F32 440i:
+ 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 exhaust tips
+ 6 HP @ 6600 RPM, 5 FT-LB
+ Factory computer controlled exhaust valve is eliminated
Special Note: Factory computer-controlled exhaust valve is eliminated.
Product Specifications
| Emission Status | 50 State Emissions Legal |
|---|---|
| Max HP Gain | 6 |
| Max Torque Gain | 5 @ 6600 RPM |
| Included Notes | Includes mounting hardware. |