SPE 2020+ GT500 Pulley

The SPE 2020+ GT500 Blower Pulley is a direct swap for the factory supercharger pulley, letting you dial in additional boost beyond the stock 11-12 PSI on the 2020-2022 Shelby GT500's Predator supercharger. Machined from lightweight billet, it's built for quick size changes and is used on some of the fastest stock-blower GT500s in the country.

Features & Benefits

• Patent-pending CNC Convex Knurling Process (CKP) surface for consistent belt grip that increases under load without wearing or degrading like laser-etched pulleys
• Lightest supercharger pulley available for the 2020+ GT500, reducing rotational mass
• Increases boost, horsepower, and torque over the factory pulley
• Sizes ranging from 2.27" to 3.2" — every 0.100" smaller adds roughly 1 PSI of boost
• Larger 2.7"-3.2" sizes also available in a standard Bare finish, since CKP grip isn't required at those sizes

Fitment: Fits 2020-2022 Ford Shelby GT500.