One of the easiest ways to pump up the power of your supercharged Cobra is to increase the factory boost level. This 2.80" blower pulley provides approximately 6 additional psi of boost, resulting in gains of up to 65 rear-wheel horsepower. It's made from powder-coated cast iron for maximum durability and features extra-deep grooved ribs to eliminate belt slippage.

Note: Use with Supercharger Belt 847-M10005 and Installation Tool 847-M10003. Pulley/Tool Package 847-M10004 also available.