Quote:
Originally Posted by Bimmer-Bob
I read somewhere that the 135i diffuser wasn't even functional, which makes it a bit lame in my book. Can't remember where that was, though.
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Thats because its NOT a diffuser, its a valance, nothing more than a cosmetic piece. I have no clue why everyone calls it a diffuser, even BMW calls it a diffuser. It doesnt diffuse anything, it actually causes drag.
These are diffusers:
http://aprperformance.com/index.php?...d=69&Itemid=47
However, I love the look of the CF pieces that are out there for the 135i bumper, but to each his own.