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2004 BMW 3-Series Air Intake Systems

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Latest Customer Reviews

K&N 57 Series FIPK Air Intake (50-State Legal) Reviews


K&N CAI - thumbs up

Reviewed By Eric S (AUSTIN, TX) Reviewed for a 2004 BMW 3-Series —8/1/2017 10:06 AM

Improved throttle response. Slight but noticeable HP & torque gains. Throatier engine sound. $69.20 promo savings + $25 K&N rebate = a $346 CAI for $251.80. Can't beat that. Seems as good as the aFe CAI I had on my prior E46 M3.

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aFe Magnum Force Cold Air Intake Reviews


BMW 330ci Performance

Reviewed By Robert C (Fayetteville, NC) Reviewed for a 2004 BMW 3-Series —4/4/2008 1:51 PM

I own a BMW 2004 330ci,(E46)...The stage 1, easy to install, my son and I installed it in less than 20 minutes, the performance is definitely noticable. You get that deep roar when, punching it to pass or just speeding up. Noticed a slight rise in gas milage sense the install. Love the sound it makes when the ignition is turned off..(the release of vacuum). The price was very reasonable..

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Injen SP Series Cold Air Intake Reviews


Best buy out there

Reviewed By Reed S (Portland, OR) Reviewed for a 1999 BMW 3-Series —5/1/2018 1:48 PM

Best value, top quality, cool looking and sounding. Bought this for my 1999 BMW E36 323i convertible and it was super easy to install and looks greT.

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