Lightweight Pulleys are one of the easiest and most inexpensive ways to add horsepower to the Scion FR-S and Subaru BRZ. Lightweight pulleys reduce weight and parasitic loss, allowing your car to rev faster and make more horsepower. Underdrive pulleys for the Scion FR-S and Subaru BRZ have a smaller diameter than stock pulleys and use less engine horsepower, increasing wheel horsepower.
Scion FR-S Subaru BRZ Lightweight Crank Pulleys
A lightweight crank pulley reduces drivetrain power loss significantly. Reducing the weight of the crank pulley by just 3 lbs is equivalent to losing 100 lbs of weight from elsewhere in the car. Installing a lightweight crank pulley is one of the best performance upgrades for the FR-S and BRZ.
FR-S BRZ Perrin Lightweight Crank Pulley – PSP-ENG-101
FR-S BRZ Lightweight Crank Pulley Ralco RZ – 914131
FR-S BRZ Lightweight Crank Pulley Tomioka – TR-TM2042
FR-S BRZ Lightweight Crank Pulley Torque Solutions – TS-SU-206