Thread: Injen CAI
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Old 10-05-2012, 07:54 PM   #5
katu
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Join Date: Jan 2011
Location: Santa Rosa, CA
Posts: 574
My Ride: '04 330ci ZHP
I don't know if BMW Performance Intakes are still available or not. If I remember correctly BMW claimed a 4hp gain and some reported as much as 7hp gained based on a dyno before/after. It sounds nice too, IMO.
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Last edited by katu; 10-05-2012 at 07:55 PM.
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