First pull your CVT cover to acess the problem. If the smoke smelled like rubber it's most likely the belt, but if it smelled like burning break its the clutch. But either way you have to inspect the CVT system. These stock buggies are not made to tow other buggies unless on flat ground but even still it puts a lot on the clutch. The hit clutch is an excellant clutch and are expensive. Unless you plan on doing some serious engine mods the hit will never reach its full potential and you would be better served with one of the other performance clutches for less money. As far as exhaust goes, about all thats available for your helix would be the Hammerhead which is not cheap. I carry the TK tunned exhaust made in Spain but havn't tried it on a Helix yet, but I do believe it would fit.
Tom
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