JB4 M135i - Video

[Dean ///M]

I'm not sure if the part numbers differ but what Has been found that the ones in 2014 & with electronic solenoid has a .5" bigger exhaust housing.

 

[4rosezn]

What dean said.... Insane power delivery....:inlove:

 

[Jeppe777]

http://www.n54tech.com/forums/showthread.php?t=23737


24whp difference when modded