lol, NG/WIX has always been on par with Purolator in my book. They've always been priced as middle of the road filters. The best filters in the study, the Amsoil, K&N, Royal Purple etc. are all the priciest filters. If the study is accurate, their final grades correspond well to actual filter price, with the Fram's best filters perhaps being the only few 'shockers', though most knew they were solid products.