The red head does well with a can, I don't think they had a pipe. I ran a bender and mbrp on mine before piping it. The bender was loud, and the mbrp didn't make as much power as the bender, but sounded better. Hope that helps
if you are going to run it on water, get ahold of Joey Strub at strub motorsports. He had a set of PI end dumps made to dump out the side so water doesn't block the exhaust. He didn't want much for them. Do a search on here or the net for strub motorsports. Maxdlx