Killer B Motorsport Coolant Breater Fitting Assembly Subaru 2015-2021 WRX

We're a company that likes solving problems. As some of you FA20 WRX enthusiasts have found, the OEM plastic breather/coolant fitting can start to leak over time, or worse, break when you're trying to remove/replace lines during a build or an AOS install. So, in typical Killer B fashion, we have designed a no fail, no leak part. We've put our own performance spin on it as well, opening up the breather port, as the factory plastic piece is too restrictive.

Features:
- No Fail, No Leak Replacement for OEM Fitting
- More Open Than the Restrictive OEM Design
- Removable fittings for custom applications
- Includes O-rings
- Includes 2 x fittings

Applications:
2015-2021Subaru WRX
2013-2020 Subaru BRZ
2013-2024 Subaru CrossTrek
2011-2018, 2025 Subaru Forester
2012-2024 Subaru Impreza
2013-2019 Subaru Legacy GT
2013-2019 Subaru Outback XT