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If you need to adjust the boost on your Whipple-equipped ride, getting a Whipple supercharger pulley is the best way to do it. At Lethal Performance, we're all about tweaking and tuning your car to achieve perfection. That's why we have a great Whipple pulley selection, each one machined from high-quality billet aluminum and anodized for protection. You can find a 07-2014 Shelby GT500 supercharger pulley, a 2011-2014 Mustang 5.0L supercharger pulley and more — just take a look around to find the model you need. Shop for Whipple pulleys now!