Reviewed By LeRoy P (Fountain Hills, AZ) Reviewed for a 1991 Porsche 911 —9/19/2009 4:22 PM
I have K&N filters on all my vehicles. As usual the instalation was simple. Milage has imrpoved by 2MPG overall. I Recomend that anybody loking for the cheapest milage and HP increase use this filter system.