Torque Solution Cylinder 4 Coolant Mod for Subaru EJ Engines was designed to increase coolant flow to cylinder #4 head area.

The additional coolant flow helps reduce cylinder #4 coolant temps and keeps the temps more uniform with the rest of the cylinders. This helps reduce knock and detonation in cylinder #4, which is known to cause the dreaded EJ ringland failure

Keep your EJ happy by installing our kit. Quality was our #1 priority which is why our kit includes CNC'd billet aluminum head and T fittings along with a multi-layer silicone hose and stainless steel clamps.

Features
CNC'd 6061 Billet Aluminum Fittings
Black Anodized
Multi-Layer Silicone Hose
Stainless Steel Clamps

Compatible with
All EJ20 / EJ25 engines
2002 - 2014 Subaru WRX
2004 - 2020 Subaru STI
2004 - 2008 Subaru Forester XT
2005 - 2009 Subaru Legacy GT

What's In The Box?
1 - Cylinder 4 Coolant Mod
1 - T Fitting
2 - Clamps