Sinister Diesel Black Ceramic Coated Stainless Steel Exhaust Tip (4" to 5") 4" Inlet and 5" Outlet Black Ceramic Coating 304 Stainless Steel Construction THE SINISTER DIESEL PROMISE  You would be happy to know that your Exhaust Tip comes with a piece of mind replacement against defects guaranteed. If you are not 100% satisfied with your purchase, we will buy our Exhaust Tip back from you, free of charge! SO, WHAT ARE YOU WAITING FOR?  Click the Add to Cart button now to get your Sinister Diesel Exhaust Tip in a Hurry!