GT55 / HX82 / HC5A / S500 half marmon (flat face) exhaust down pipe flange. Has total diameter of 5.16″ and transitions to your choice of either 5″ or 4″ 16 ga tube. Fits Garret GT55 and Borg Warner S500 and Holset HX82/HC5A as well as many other large frame turbos with 5.16″ total exhaust flange diameter. Has lip to protrude into exhaust housing which aids with sealing as well as installation. Flange CNC machined from mild steel in Clinton,TN. Pictures show flange size variations. Pictures show a GT55 exhaust housing which is not included. This is the most common size down pipe flange on HC5A and HX82 turbos used in tractor pulling. Call us if you need help verifying fit to your turbo.
