Reviewed By Jeffrey D (Newark, CA) Reviewed for a 2007 Chevy HHR —7/12/2013 9:18 PM
I recently had to swap out the air cleaner system on my car since CARB decided to change the rating for the GM Performance intake. The K&N system is CARB legal and was a breeze to install. It also is a lot quieter than the system it replaced. I don't have a constant drone at highway cruising speed and at stop lights I had to check if the engine was running after I first installed it. But stomp on the skinny pedal and it lets you know it's there and gives the engine some extra grunt.