I am wondering if there is a big difference between aftermarket air filter or air filter. I am talking about the ones you can buy at a aftermarket part store like Autozone. I am not interested in high performance air filters just one that will protect the best. So if you can, please help me out and tell me if I should go with aftermarket or oem air filter. I own a 2007 Chevy Cobalt Coupe LT.
