One of the guys at my field has suggested a contest this spring/summer ... How fast can you go with a ST 45? Several of us have these engines. So it should be fun. It's not my fault he failed to specify limits on modifications, exhaust, etc. Not that I would cheat (heh,heh,heh) or anything, but as Dale E. said "being second is the first loser. I bought a new ST GS45 for this contest, it is made in Italy. I know one of the competition is using a Nelson Ultrathrust muffler. I'm currently flying a modified Outlaw, and building a Magnum copy. I know the collective wisdom of the speed freaks will prevail!! HELP!!!