Reviewed By Tracy S (Mt Pleasant, TX) Reviewed for a 1993 Audi 80/90 Series —11/14/2008 6:06 AM
It's a K&N. I don't have the equipment to test it but their reputation proceeds them. I was very satisfied with the price and shipping!
Reviewed By Jose V (Pasadena, TX) Reviewed for a 2011 Nissan 370Z —6/28/2016 12:40 AM
Switch out stock filter for the aFe pro-dry S air filters in my 370z. After two months of use I have notices a 1.1 more MPG so I am very happy with that. I also feel like the car shifts smoother through the gears.