Reviewed By Dorian B (Greensboro, NC) Reviewed for a 2006 Lexus IS 350 —2/24/2014 8:50 PM
I've had my car for just under one year. The k&n unit makes a big difference in miles per gallon. The city mpg has gone up by at least 2 mpg using the meter in the car. The longest ride I've taken since the installation was about 180 miles. The sound of the k&n has changed the car as well. The sound is of a pure ancient beast. At under 2k rpm the sound is hardly over stock. The sound picks up slightly from 2 to 4 rpm and is ever present from that point to redline.