I have a nice exhaust system for the mono block conversions. It was the stock 600 exhaust that Bikeman modified for the 800 kits. This exhaust worked very well for me. I ended up buying their can/muffler too as I was trying to get every ounce of performance out of it and I wanted something a little louder. The ceramic coating was redone this last summer and turned out amazing, way better than any other exhaust I've had. I ran it for about 5 miles this year before it blew so it is still very clean. I did put a lil scratch or two on the exhaust after it came back out of the sled but I think I'm about the only one that notices that kind of petty little imperfections. Shoot me a fair offer and its yours. Located in Lewistown, MT, can ship anywhere. Includes 800 y-pipe, single pipe, and lightweight can - all very beautifully ceramic coated. Please PM me or email rmk900_166 at hotmail.com