2012-15 STM Tuner Procross 800 Helix's
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AC 800/8000 Series, Polaris 850 and Skidoo E-tec 850 STM Gen 2 Helix
$84.00STM Gen 2 helix with reverse notch Fits All STM Gen 2 Snowmobile Tuner secondary's for 2 stroke machines with reverse MH3-13-20$84.00