GetaDomTune Cylinder 4 Cooling Kit for Subaru EJ Engines | GDTCYL4COOL-SS
Video description
Improve cooling where your EJ engine needs it most with the GetaDomTune Cylinder 4 Chamber Cooling System. Designed specifically for DOHC Subaru EJ engines, this innovative, patent-pending cooling kit increases coolant flow through the left-hand cylinder head, helping reduce the hot spots around Cylinder 4 that are commonly associated with detonation and elevated exhaust gas temperatures.
Whether you're building a high-horsepower street car, track car, or simply looking to improve long-term engine reliability, this cooling modification is a popular upgrade for EJ owners.
Fitment:
Subaru WRX (2002-2014)
Subaru STI (2004-2021)
Subaru Legacy GT (2005-2009)
Compatibility:
Fits all DOHC EJ engines except 2010+ Legacy GT models
Features:
- Patent-pending Cylinder 4 combustion chamber cooling system
- Increases coolant flow through the left-hand cylinder head
- Helps reduce Cylinder 4 hot spots
- May reduce detonation risk by improving coolant distribution
- Helps reduce exhaust gas temperature (EGT) variation between cylinders
- Improves overall cooling system efficiency
- High-quality silicone coolant hose
- Custom-machined and anodized 6061 aluminum fitting
- Includes stainless steel clamps for long-lasting durability
Kit Includes:
Coolant pipe with high-grade silicone hose
Custom anodized 6061 aluminum fitting
Stainless pinch clamp
Three 316SS or 304SS worm-drive clamps (based on availability)
Cylinder 4 has long been recognized as one of the hottest-running cylinders in Subaru EJ engines. The GetaDomTune Cylinder 4 Cooling Kit is engineered to address this by improving coolant flow where it's needed most, helping support consistent engine performance and long-term reliability.
