Top performer in Dirt Wheels Magazine exhaust shoot outs for the past 4 years. Designed with larger diameter stepped head pipes and a 2" open flow non-restrictive core to produce maximum power and torque throughout the entire powerband. 304 stainless steel headers and inlets and T-6061 aerospace-grade aluminum canister with TIG welded aluminum brackets. Spark Arrested and USFS Forestry approved. Includes a USFS Approved Spark Arrestor. Includes a 2 Year Limited Manufacturers Warranty. Is made of high quality Aluminum, Stainless Steel, or Carbon Kevlar. Packed with high performance glass wool packing. Includes Installation Instructions. Manufactured in the U.S.A.