actually that sounds kind of appealing! I absolutely hate a piped 2 stroke snowmobile. Sounds like a couple weedeaters I used to own that had blown through their exhausts. I could look down what remained of the exhaust pipe and see the piston. In fact, those sounded BETTER than a loud piped 2 stroke snowmobile.Yamaha's 4 strokes sound somewhat like crotch rockets on snow. Not very desirable IMO. I do think they're good though.