I like the k&n set up. I'm getting a little better fuel mileage. The overall power difference is somewhat noticeable,especially up into the higher rpm's. Just one small downfall for me & some people may like it a little better than I do,is the extra sound you get from it. Because it's definitely got a pretty good roar coming from under the hood. Especially in a pull or taking off with the pedal matted.But I still give it a good rating.