Ok, folks, a potentially stupid question for y'all:
What happens if you just take the pipes off altogether (an example of htis would be
http://img212.imageshack.us/img212/8821/sbtthruxton90010cv.jpg, posted just yesterday)? I mean, I've seen plenty of Trumpys that appear to have no "can" whatsoever, and the pipe just ends under the case. It'll run, I know, but would that be optimal?
Another thought: what's to prevent some unscrupulous fellow from, say, simply machining some lightweight steel pipe to direct the exhaust further down the bike? It is just a pipe, after all... Yes, I realize it would be VERY loud, but considering how loud some of the bikes I've heard have been, why the hell not, y'know?
I ask all this because I know some (all?) engines require some backpressure in the system to run properly. Where's the sweet spot there?
--Jaeger
