[mike@x-ph.com]

Available in Black or Polished tips with the option to add high flow midpipes.

Dinan's Free Flow Exhaust with Black Tips for the F22 M240i & xDrive coupe improves exhaust flow by reducing back pressure and accentuates an exhaust note with a more purposeful tone complete with intoxicating burbles.


Special Note: Factory computer-controlled exhaust valve is eliminated.
Dinan engineers designed the F22 M240i 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 F22 M240i:

+ 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
+ 6 HP @ 6600 RPM, 5 FT-LB
+ Factory computer controlled exhaust valve is eliminated.

[ager416]

has anyone done the full dinan exhaust? it's around 3K installed here in canada (from the dealership), for that much it needs to sounds/feel wicked. already have that S1 (wicked) and kinda wanna stick with dinan...

[mike@x-ph.com]

Originally Posted by ager416

has anyone done the full dinan exhaust? it's around 3K installed here in canada (from the dealership), for that much it needs to sounds/feel wicked. already have that S1 (wicked) and kinda wanna stick with dinan...

It would be cheaper to get the exhaust from the US