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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
2004BMW 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.