This 3" universal Hydroformed BORLA® SwitchFire® X-Pipe is designed to be used to create custom exhaust systems. By using Hydroforming in the manufacturing process we are able to have a lower profile on this part than a conventional SwitchFire® X-Pipe. This SwitchFire® X-Pipe is 21.1" Long x 7.8" Wide x 5.5" High with 3" I.D. Inlet and 3" O.D. Outlet. Reversible design for installation flexibility. Completely eliminating the turbulent center intersection of a standard X-Pipe, BORLA®'S patented SwitchFire® design truly blends the combustion pulses from both sides of the engine for improved performance. The result is an aggressive custom sound and improved power. Un-Notched Outlet necks are designed for weld in installation. If clamping, use 3" wide band clamp 18006 (clamps not included). Each SwitchFire® X-Pipe is built from premium, high-quality T-304 austenitic 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. Best of all, BORLA® stands behind every SwitchFire® X-Pipe with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.