BMW 3-Series (E90 E92) Forum - View Single Post

Route 16 · 05-21-2013, 01:30 AM

Seems like this filter wrap does restrict airflow even though it's used to help keep it clean. Exhaust note changed just a tiny bit, now have to drive it for a week to see if it'll improve.

05-21-2013, 01:30 AM	#5380
Route 16 I got lei'd 844 Rep 7,593 Posts Drives: '10 E90 M3 Join Date: Sep 2011 Location: Dark Side of the Moon iTrader: (62)	Seems like this filter wrap does restrict airflow even though it's used to help keep it clean. Exhaust note changed just a tiny bit, now have to drive it for a week to see if it'll improve. Attached Images
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