3" THDP (steel, not stainless) with stainless test/dump pipe and dynatech muffler. I used the dump pipe for the track and muffler for the street. The muffler knocked out a lot of resonation while cruising. Aestheticlly the pipe needs paint or coating but works and fits perfect, has 1 1/4" puck for internal w/g. Stainless preformed pipe clamp and new stainless DP bolts. $400.00 for everything, shipped.