A while back, someone was wondering about restricting the outlet of the tuned pipe. If that rider reads this, they may want to try to contact Gary "The Dr." Potyok, who used to be involved with Bieda's in Fenwick, Ontario. He was doing a bunch of tuning for them back in the late 80s, early 90s. Last time I was talking to Gary was in '98. He was working for Ski-doo at that point.

Check Bieda's website, www.biedaspowersports.com *You might be able to get in touch with Gary thru them.

Gary is the southern ontario ski-doo rep!