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      09-29-2010, 10:42 PM   #146
AlanAZ
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Drives: E90 325i sport manual
Join Date: Aug 2009
Location: Scottsdale, AZ

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Just did this to my car and I have PBX in it which really show the charcoal filter delete mod really works.

Def a improvement in accelertion and fuel burn overall, esp WOT it pulls harder now....

Can't believe the charcoal filter was restricting the airflow so much it was like choking the engine.
Agreed. I replaced my filter with an oiled AFE, and it totally rocks. When I blip the throttle for downshifts, the RPMs go up immediately now, like on my previous E46. Before I had to plan ahead and give more gas. I think this is a must-do. Oh, and scoops help also - but there was more dirt in the airbox than without them, you just need to clean it and filter more often.
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