Part of the parts stash that came with my 40. Pulled it out last night out of curiosity. A quick google search and it looks a bit like Mark's version (once you look past the caked on dirt). Suggestions on how to clean it up? I guess a pressure washer to start. Obviously the part below the collector is toast. Getting those bolts off should be fun.
Is this one of Mark's?
Is this one of Mark's?