Universal X-Pipe for building custom exhaust systems. 2.5" Inlets, 2.5" Outlets, 27.63" Overall Length. Clamps NOT included. Use 18325, 1" wide band clamps on notched connections. Use 18004, 3" wide band clamps on un-notched connections. X-Pipes increase performance and improve sound. Built from from premium T-304 stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit.