PERRIN 15-21 Subaru WRX / 18-20 Crosstrek / 14-18 FXT Lightweight Water Pump Pulley - Blk

Crafted from a single piece of 6061-T6 aluminum, this water pump pulley from Perrin Performance is designed to reduce rotational mass on your Subaru's engine. By shaving off weight compared to the stock pulley, it helps the engine rev more freely, leading to a more responsive feel when you get on the gas. This isn't about adding horsepower, but about making the power your engine already has feel more immediate.

The black anodized finish not only looks sharp under the hood but also helps protect the aluminum from corrosion. Perrin is known for making well-built parts for Subarus, and this pulley is no exception. It's a straightforward swap for the factory pulley, making it a popular choice for owners looking for a small but noticeable improvement in engine response without getting into major modifications.