This is a u weld kit for your own custom exhaust. Kit comes with everything pictured. All pipe is 1" OD with the exception of the tailpipe. The Kit includes: 1) "U" piece 1) 90 Degree bent piece 1) 120 Degree bent piece 1) 1 1/4" OD Straight Piece 1) Header Flange Fits Most 5.5HP or 6.5HP OHV Clone (Yellow, Blue, Box Stock Clone [BSP]) or Honda GX150/GX200 Engines. The 5/16" Bolt Holes are 1-3/4" Apart and the Flange has a Thickness of .175".