GENSSI Muffler Tip Exhaust Tail Pipe Black (ID: 5 OD: 8 Inch Length: 18 Inch Angled Roll Bolt) Premium Quality Stainless Steel for durability; Black Powder Coated Exhaust Tip Length: 18 inches (16 inches on the bottom part) Inlet: 5 Inches w/Bolt Outlet: 8 Inches Rolled Angled Edge Professional installation is highly recommended; No instruction included