So, I fitted this today, open air filter on my 335d!
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09-18-2012, 05:22 AM
Drives: 335D M3
Join Date: Nov 2011
Had a go, but sound not great on the video at all. Will attempt some more when get a chance. Sounds louder with more rumble really.
Last edited by NJ 1161; 09-18-2012 at
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