PERRIN 15-21 Subaru WRX / 14-18 Forester XT Bypass/Blow Off Valve - Red

This Perrin bypass valve is made with a red anodized aluminum body, a material chosen for its light weight and durability. It's designed to replace the factory bypass valve on your 2015-2020 Subaru WRX, and also fits the 2014-2018 Forester XT models. The stock bypass valve can sometimes leak boost under higher pressure, which this Perrin unit helps prevent. By using a precisely machined piston and spring, it holds boost more reliably than the original part.

The result is a more consistent delivery of power, especially when you're pushing your car. You'll notice a crisper sound when the valve releases boost, which many enthusiasts prefer. Installation is straightforward, as it's designed to bolt directly in place of the factory valve, using the same mounting points and connections. This makes it a popular upgrade for WRX owners looking for a noticeable improvement in turbo response and a more satisfying sound without major modifications.