TC Bros Choppers do it yourself builders exhaust kits fit all Harley Davidson engine generations from Pan to Twin Cam including Sportsters. This kit comes with everything you need to cut and weld a set of custom pipes for your bike and is made right here in the USA! All tubing is 1.75 OD x 16ga Wall (.065 Thick) American made mild steel for superior weldability. All bends are 3.5 centerline radius and are produced using a CNC mandrel bender for accuracy and maximum exhaust flow. Kit includes qty 2 90 degree bends, 2 180 degree bends, 3 straight tubing pieces, 2 U-channel mounts, and the proper heavy duty flange set to fit your bike with a leak free seal. This DIY kit is the perfect way to build the unique looking set of pipes you desire!