The Hush Puppy is from the 1980's,dont think I've seen it around since.FMF Q-series, Pro Circuit type 296, or as gowen said the stock silencer with a "Sparky" add on spark arresters should be quiet.Use high temp silicone on all the joints and a wrap around aluminum or carbon fiber pipe guard will help cut a little noise.You could also fabricate a tip for the end of the silencer that aims towards the groud ,that will help.Try repacking the stock silencer first,if its still to loud dont get a spary (its not going to cut much noise),instead try the FMF or P.C. silencer and go from there with the other ideas.