Precision Works Cylinder 4 Coolant Mod Subaru EJ Engines
Key Features:
- Increase flow to cylinder 4
- Reduce cylinder 4 temperatures to keep all cylinders temp. even
- Reduce knock and detonation
- Prevent ring land failure
- 6061 billet aluminum
- Precision CNC machined
- Multi-layer silicone hose
- Stainless steel clamps
Designed to work with the following Subaru:
- Subaru EJ20 EJ25 Engines
- Subaru WRX 02-14
- Subaru STI 2004+