Thread: Injen CAI
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Old 10-05-2012, 05:57 PM   #3
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Join Date: Feb 2012
Location: Annapolis, MD
Posts: 1,227
My Ride: 2003 330i ZHP
Do a search next time. The stock intake is more than likely going to give you both better mileage and better performance. This isn't an economy car, parts on BMW's are designed to be efficient you can't do simple "upgrades" and get real results. If you just want it for sound, go for it, but don't expect any gains without a tune, even then it's not worth the money, you'd never feel the difference.
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