Upgrade your Subaru’s performance with the Kartboy Lightweight Aluminum Crank Pulley, designed specifically for 2017-2025 Subaru models equipped with FA and FB series engines. Weighing just 1 lb, this pulley reduces rotational mass compared to the stock unit, freeing up crank horsepower without triggering a check engine light. It’s a simple, effective way to enhance engine response and efficiency while adding a sleek, signature Kartboy look under the hood.

This pulley fits a wide range of Subaru vehicles, including the 2022-2025 WRX, BRZ, GR86, 2017-2025 Crosstrek (including 2024-2025 Wilderness models), 2019-2025 Ascent and Forester, 2020-2025 Outback (including Wilderness and XT trims), 2020-2025 Legacy XT, and 2017-2025 Impreza. Its lightweight aluminum construction ensures durability and performance gains without compromising reliability.

Perfect for Subaru enthusiasts seeking a practical upgrade that improves throttle response and engine efficiency, this crank pulley is an ideal addition to your forced induction or engine management upgrades. Shop now at Subimods to enhance your Subaru’s performance with quality parts tailored to your model.