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Whipple GT500 10 Rib Supercharger Pulley
Looking to increase or lower boost on your 2.9 or 3.4L Whipple? Then you'll need one of Whipple's 10 rib supercharger pulleys. The Whipple pulley doesn't need any special tools for installation. It simply bolts to the supercharger using 4 allen bolts.