E46Fanatics - View Single Post - Aussies "Mighty Car Mods" dyno-compare air filters (+ CAI) on cars (no BMWs)
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Old 05-29-2012, 08:10 AM   #9
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Join Date: Aug 2009
Location: Ontario Canada
Posts: 966
My Ride: 1999 328i (M54b30)
I thought it was pretty well known that unless its a true cold air intake, the short ram type intakes are pretty useless for power.

Honestly, I'd say the benefit of a true cold air intake is not so much the increased peak power but from extending/solving some heat soak issues to help make reliable/consistent power.
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