PERRIN 19-21 Subaru WRX / 16-18 Forester / 15-19 Legacy Lightweight Crank Pulley - Black

If you're looking to free up a little extra power and improve throttle response on your 2019-2021 Subaru WRX, 2016-2018 Forester, or 2015-2019 Legacy, a lightweight crank pulley is a solid choice. This Perrin Performance pulley is designed to reduce rotational mass on your engine's crankshaft. Less mass means the engine can spin up faster, which can lead to a more immediate feel when you hit the gas.

Perrin makes this pulley from a single piece of billet aluminum, then anodizes it black for a clean look. Because it's lighter than the stock pulley, it's easier for the engine to accelerate. This isn't a massive power gain, but it's a noticeable improvement in how quickly the engine revs, especially in the lower RPM range. It's a well-built part that fits right onto your existing setup.