Forge Audi S4 / S5 3.0 TFSI Supercharger Pulley Kit

Forge Motorsport pulley is smaller diameter than stock to increase the speed at which the supercharger spins in order to increase boost pressure output. Increased boost pressure in conjunction with upgraded ECU software results in a dramatic increase in horsepower and torque throughout the entire powerband. This will not increase stress or excessive wear on supercharger or engine components