I'll second that, but be carefull with the avatars. Us admin types discuss the risky ones in our private little area, and decide their fate at will. As for the stack idea, yes this has been done. I saw an article in 4Wheeler mag back in the 80's where a fellow had put a Cat in a late 70's body style, and had a single chrome stack coming up throught the windsheild cowling as close to the passenger side A pilliar that he could get it. It looked good, and was not in volation of any visibility laws. Kinda like a duece and a half. I'd use a curved tip which should prevent any problems with sooting up the windshield.