Exhaust System Kit
Freeflow Axle-Back Exhaust
Freeflow Axle-Back Exhaust; 304 Stainless Steel Construction; 8 Max Horsepower Gain; 6 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:
- Improves Exhaust Flow By Reducing Back Pressure
- Increases Power Output And Provides Great Sporty Sound
- Reduces Low-RPM Drone So The Cabin Of Vehicle Is Still Intimate
- Easy Bolt-On Installation w/Included Mounting Hardware
- Vehicle Is Intimate And Not Drowned In Excessively Loud Tone
- Enjoyably Louder / Sportier Sound
- Computer Controlled Exhaust Valves Are Retained
- Valves Are Open Fully During High-Load Conditions
The exhaust ushers in a new era of Dinan exhaust design. To date, Dinan has been synonymous with welded on, thin walled tips and a philosophy of exuding a civilized note when you want it to be, and a pleasantly aggressive one under hard acceleration. While the mantra is maintained, albeit tweaked with the emergence of mid-pipes and resonator deletes to those who want an even more aggressive sound, the styling of the tips is being drastically transformed. The new massive 4 in. diameter tips on the M550i exhaust are the biggest we have done thus far in addition to being double walled, the polar opposite of our normal thin walled style. Perhaps most importantly however is the new tips are clamp-on. Not welded as in the past, so they can be easily swapped to new styles, or replaced as the need arises. Internally, the exhaust is typical of other Dinan exhausts and is designed
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.