I have a supertrapp I'd be willing to part with for cheap, maybe even a trade for some goods...
I had a supertrapp in my 550 with the racing guts/plates and that thing used to hurt my ears with the front exit.... Also got lots of complaints about it as well as my friends getting complaints about riding with "that guy"
I got the supertrapp to go in the square but I might not go that route now... I want quiet I think... However, this does only have the normal rec. plates but Zig is selling the race plates...