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Watson Racing makes these 10 rib kits, but yes no one makes them for the Raptor because of lack of demand.  Are people really throwing belts that often?  We've sold over 200 Whipple Supercharger systems since 2010, most with a 3.250 pulley and 061247 belt.  I've had less than a handful of people call with issues or stating they threw a belt.


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