Take the load off.
The math is pretty simple, it takes power to spin a pulley. The heavier the pulley is, the more power it will take to spin it. Your motor is limited in how much power it can make. By swapping to a lighter pulley your motor will spend less power spinning pulleys, and more power spinning the wheels. Since it's easier to get the pulley spinning in the first place, you'll also see an improvement in throttle response. Not to mention that you'll be shedding nearly 3.5 lbs.
The Complete Package
To maximize results, we've built this kit to replace three of the pulleys on the accessory drive system. The pulleys replaced are the crank, water pump, and alternator pulley. All three CravenSpeed pulleys match the stock pulley diameters, so the stock belt sizes are maintained, and accessory output is unchanged. They are precision machined from aluminum for perfect balance, and anodized black, right here in the USA. Installation of these pulleys is fairly straightforward with no specialized tools required. We'd expect it to take 2-3 hours.
Notice: This product has NOT been certified for legal use in CA and other states adopting CA emissions standards under Section 177 of the Federal Clean Air Act of 1970. Please check with laws in your area to make sure that your use of this product is compliant with current regulations in your jurisdiction.