This is my SXI 800 freeride ski. not sure what coffman pipe this is but it works great. If any knows let me know. The motor is done for now except for total loss. It has a 48 sbn carb, westcoast intake, v force reeds, mild port, 82 mm pro-x pistons, sx cylinders and big pin crank. Just made new footholds to replace the old ones and have to pull the tray to refoam and install a one way valve.