Custom DIY header exhaust kit for use on Tecumseh Powersport H50 5-6.5 hp engines that use 1/4" exhaust studs spaced 1 1/2" center to center. Made with pride in Colorado, U.S.A. Kit includes mandrel bent 90 degree 1" tube with 3" radius, CNC cut 1/4" thick flange, and stainless steel replacement mounting hardware. THIS KIT REQUIRES WELDING. If you do not have access to a welder most muffler shops are able to do this for you. THE FLANGE IN THIS KIT WILL NOT FIT THE HS SERIES ENGINES. MAKE SURE TO VERIFY THE CENTER TO CENTER BOLT SPACING ON YOUR ENGINE IS 1 1/2" FOR PROPER FITMENT. Great start for those that want to weld their own exhaust system for generators, go karts, mini bikes, or?