Precision Works Cylinder 4 Coolant Mod Subaru EJ Engines - Subaru WRX 2002 - 2014 / STI 2004+

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+