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BMW F30 340i/F32 440i Dinan Free Flow Exhaust

Special Note: Factory computer-controlled exhaust valve is eliminated.

Dinan engineers designed the F30 340i and F32 BMW 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") ceramic black exhaust tips for a tasteful, high-performance look.

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

Benefits of the Dinan Free Flow 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 ceramic black or polished stainless steel exhaust tips
+ 6 HP @ 6600 RPM, 5 FT-LB
+ Factory computer controlled exhaust valve is eliminated. 

A Premiere BMW Tuner

Founded in 1979, Dinan is well established as North America’s premiere BMW tuner. Dinan develops, manufactures and markets a comprehensive line of high performance products and systems, distributed through a nationwide network of Authorized Dinan BMW Performance Centers that includes select BMW Dealerships and Independent BMW Service/High Performance facilities.

Dinan’s industry leading warranty program, quality products and solid engineering have helped to make Dinan an almost household word among BMW driving enthusiasts. Road tests conducted by major automotive enthusiast publications over the last 30 years place Dinan enhanced BMWs on a performance level with some of the most exotic sports cars in the world. At the same time, Dinan BMWs are widely renowned for being civilized and reliable, providing a high performance BMW-like driving experience without equal.

Dinan’s comprehensive warranty program, introduced in 1996 with the cooperation of BMW of North America, provides BMW owners with matching coverage to that offered by BMW’s new car warranty, ensuring that Dinan performance enhancements and the BMW they have been installed in are covered for up to 4 years or 50,000 miles. BMW automobiles can now be performance-tuned without the associated concern of negatively affecting the new car warranty coverage, making the idea of enhanced driving fun and excitement appealing to a rapidly growing number of BMW drivers. In addition, Dinan Certified Pre-Owned high performance BMWs are now available through participating Dinan Authorized BMW Dealerships, offering matching warranty coverage to BMW's program.

Dinan is also now expanding its offerings to include the popular MINI models, providing the same attention to detail, solid engineering, warranty and performance that have made Dinan widely regarded as the top BMW tuner in North America.

Dinan offers a broad range of BMW performance products from engine, driveline and chassis tuning components to complete Dinan Signature Vehicles and special Factory Works programs. As a serious BMW Tuner, Dinan's objective is to offer complete performance solutions for the entire range of BMW models. We believe that every BMW driver deserves the opportunity to get the most from their car. From faster acceleration to improved cornering capabilites and stopping power, Dinan takes the guess-work out of creating the high performance BMW of the enthusiasts dreams with compete, balanced performance systems.