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      07-30-2012, 02:29 PM   #6

reechar's Avatar
Drives: 2008 E92 M3
Join Date: Feb 2011
Location: Northern Virginia, US

Posts: 131
iTrader: (1)

Originally Posted by snowmants View Post
what ducts are they? Brake cooling ducts? Oil cooler duct? Are the ducts no longer functional with this bumper?
As far as I can tell. One of the ducts is just there cosmetically and doesn't run anywhere in the first place. The other duct is an air intake for the engine. I'm sure air is still flowing into it, probably just not as efficiently. I think most of the air flows in from the kidney grills area anyways though. I doubt there is that much performance lost.