Exhaust System Kit
Freeflow Exhaust Kit
Freeflow Exhaust Kit; 304 Stainless Steel Construction; 10 Max Horsepower Gain At 6600 RPM; 8 lbs.-ft. Max Torque Gain; 4 in. Diameter Ceramic Black Coated And Laser Engraved Tips;
SPECIFICATIONS:
- Exhaust Type: Axle-Back
- Tip Diameter: 4.000 in.
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
FEATURES:
- Enjoyably Louder / Sportier Sound
- Increases Power Output And Provides Great Sporty Sound
- Tubing Utilizes Absorption And Reactive Technologies
- Larger Diameter Piping For Increased Flow / 83 / 80 mm.
- Stock Exhaust Valve Actuators Are Reused
- Operation Of Exhaust Valve Is Unchanged
- Computer Controlled Exhaust Valves Are Retained
- Valves Are Open Fully During High-Load Conditions
- Twin Secondary Exhaust Valves w/Whopping 76 mm. Diameter
- Valves Are 30 Pct. Less Restrictive Than The OE Valves
- Easy Bolt-On Installation w/Included Mounting Hardware
- Tips Masterfully Fill Up And Accentuate Upon The Factory Cut-Outs
In order to achieve desired sound volume and tone Dinan felt the tubing was enlarged to 83 mm. (vs 80 mm. stock) to allow freer flow throughout the entirety of the system. The larger tubing is fed into a muffler that is typical of all Dinan exhaust design and utilizes absorption and reactive technologies designed to improve exhaust flow and reduce back pressure. The combination results in increased power output and a great sporty sound that is civilized when you want it to be, and pleasantly aggressive under hard acceleration. This is partly courtesy of the retained computer controlled exhaust valves that limit noise during low speed driving and open fully during high-load conditions to allow free flow and greater sound as the bulk of the gases are bypassing the muffler. Like all Dinan exhausts, our M5 free flow exhaust is engineered to reduce low-RPM drone so the cabin o
At Dinan our passion for European cars is seen in our dedication to producing and creating the most innovative and performance driven aftermarket parts on the market. The serious enthusiasts turn to us because they appreciate our ability to make performance upgrades that outperform the rest of the aftermarket industry. With years of experience working with BMWs and other marques, our technicians and engineers are trained to find ways of getting the best out of each European vehicle that comes unto the market. With massive amounts of R&D behind all the aftermarket parts we build as well as using the best quality materials, such as stainless steel and carbon fiber, our parts aren't merely just parts; they are portals that allow us take a car from good, too great.Most of the parts from Dinan come to our customers with the best warranty in the aftermarket business with a factory matching 4 year or 50,000-mile new car warranty. This allows owners to have confidence in our upgrades: we proudly stand behind our work and our warranty guarantees that you'll be happy.