Killer B Motorsport Coolant Breather Fitting Assembly 2015-2021 WRX | DBFAv2 GR Corolla_2023-2024 heavy cornering

heavy cornering

So when you turn the steering wheel

If you want to keep things looking stealthy under the hood we also have an air box available as well (You can select this from the drop downs below)

The vented design creates an aggressive motorsport look while helping improve airflow and heat evacuation during spirited driving and track use

Inlet Diameter: 2

Killer B Motorsport Coolant Breather Fitting Assembly 2015-2021 WRX | DBFAv2 GR Corolla_2023-2024 heavy corneringKiller B is 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, they have designed a no fail, no leak part. They've put their own performance spin on it as well, opening up the breather port, as the factory plastic piece is