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. Centerline spacing on inlet and outlets is 4". 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. Notched Outlet necks for easy clamp-on installation using 1" wide band style clamps 18330 (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.