Enhance your engine's performance with our bolt-on aFe POWER Pulley kit. By changing the pulley diameter, you can adjust the spin rate of the supercharger, resulting in increased boost and amplified power. The aFe POWER Pulley kits are meticulously crafted to achieve a perfect equilibrium of lightweight design and high strength through precision machining. Count on our pulley kits for optimal functionality, a flawless fit, and an impeccable finish, ensuring a seamless boost to your engine's power. Pulleys crafted from high-quality 6061-T6 billet aluminum showcase exceptional characteristics. Through precision machining, these pulleys achieve a remarkable balance of light weight and high strength, ensuring not only optimal functionality but also a perfect fit and finish. Our pulley kits featuring a 17-4 stainless steel hub, combining corrosion resistance and high strength through precision machining, ensuring a perfect fit, impeccable finish, and optimal functionality. Please note that special tools are required for removing the factory pulley from the supercharger snout, and we recommend professional installation for the kit to ensure seamless performance.