2X Sliver Exhaust Duo Polished Tip Staggered Stainless 2.5"In 3.5"Out Left Right Premium Quality T304 Stainless Steel Exhaust Tip 1X Left.1X Right.Staggered.Duo Outlets.Sliver Tips.Polished Surface Single Layer.Slant Cut.Weld-On Type Inlet: 2.5" (63mm).Outlet: 3.5" (89mm);Total length: 9.5" (241mm);Width: 7" (178mm) Professional installation is highly recommended. No instruction included.