Review on K&N Cold Air Intake Kit: High Performance, Horsepower Boost: 50-State Legal: 🚀 Fits 1992-1999 BMW (323Ci, 323iS, 328i, 328ic, 328iS, M3, 328Ci, 325Ci, 325i, 325iS)57-1000 by Gary Generale

Easy to install - took about 30-40 minutes - a decent mechanic would do it in 10! Lol A VERY noticeable improvement in off-line and on-road performance - the exhaust sound gets a bit deeper too. After two tanks of gas, my car computer has increased by an average of 1.4mpg, and that includes getting heavy legs with the new improved performance.