These black chrome tips are made to fit BORLA Cat-Back systems 140755 and 140756 and will Not fit on the original equipment exhaust system. Will Not fit if equipped with OE trailer hitch. Using BORLA Stainless Steel Polish p# 21461 is Not recommended with these black chrome tips. We suggest cleaning the tips with hot water and a microfiber cloth. Kit contains 2 tip assemblies. Best of all, BORLA stands behind every tip with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.