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.