The NonStopTuning Scion FRS & Subaru BRZ FA20 Pulley Kit is designed for tuners looking to reduce weight and increase the throttle response of their engines. These OEM diameter pulleys will neither underdrive nor overdrive the associated accessories, yet lead to great throttle response and improved horsepower and torque numbers. Compatible with naturally aspirated, turbocharged, or supercharged engines. Each kit is CNC machined from 6061-T6 aircraft quality aluminum, and tested for tight machining and balance tolerances. Every NST pulley is hard anodized for exceptional durability and is available in a choice of colors. THIS LISTING IS FOR A RED COLORED KIT, other colors are available on the NST website. ​The NST kit is compatible the OEM belt, we recommend a new belt for our high mileage customers.
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