Reviewed By Christopher D (Laredo, TX) Reviewed for a 2006 Porsche Cayenne —4/22/2012 7:30 PM
Well I heard they help with gas mileage compared to the standard air filters. Like the fact that they are reuseable and think that alone is a plus, especially for my vehicle which requires two and uses premium gas and doesn't get the best mile per gallon ratio. Haven't had them long enough to know but I hope they help out, especially with rising gas prices. Look foward to see if they come through and meet my expectations.