We made an exhaust and mounted the axle/sprockets to a kart. It was fitted with a 600 Blackbird motor and was geared 16/26 or something stupid and the headers came out at shoulder height behind the seat. We never saw it run and told the guy we didn't want to as we weren't up on our CPR skills.
He was hoping it would "Do wicked Skids" Yep, we were sure it would-just not in our eye shot!!