These universal mufflers are ideal for those who choose to make their own custom exhaust systems. SuperTrapp has long been the exhaust system of choice for tuners who build high-performance engines, and instant bolt-on horsepower increases are now available to those who install these mufflers. They’re available in two different styles and in 1 3/4" or 2" inlet diameters. - Includes a stainless steel header clamp and a pair of weld-on mounting brackets. Sold each.