Reviewed By Donald R (Park City, MT) Reviewed for a 2008 Chevy Corvette —1/30/2014 11:49 AM
Had a little trouble with the mass air sensor in kicking out codes, but went away after a while. Seems to have better response and a little better HP.
Reviewed By Ronald C (riverside, CA) Reviewed for a 2013 Hyundai Elantra —3/29/2015 12:22 PM
The AEM filter actually does make a difference in responsiveness. The car responds to gas pedal a little better. I don't know if I gained any horsepower or gas mileage. But it's a great filter so far.