I have a brand new K&N FIPK model number 57-3021-1. I bought this kit for my Chevy Silverado 1500 5.3L V8. I never installed it. It is brand new and still in the box with all parts and directions. I have a Chevy 2500HD now and it will not fit. Check out K&N's website to see other vehicles it will fit. It costs $300.00 new. I will take $275.00 shipped or best offer.