I have a completely stock 335i and just put a jb4 on. There is a huge difference in power output and the car feels great. I am undecided about what intake to do at this point but running stock intake with the jb4 will give you a huge burst in power and transform the car.
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2015 M4 Mineral White/Sakhir Orange 6MT
Retired 2007 335i Montego Blue/Saddle Brown 6 MT
Retired 2006 325i Black/Black 6MT
[IMG] m4 by senntera, on Flickr[/IMG]
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