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  • Torque Solution 02-14 WRX / 04-21 STI / 05-09 LGT / 04-08 FXT Cylinder 4 Coolant Mod Line Kit | TS-SU-585

Torque Solution

Torque Solution 4.0 (1)

Cylinder 4 Coolant Mod Line Kit

Fits: 02-14 WRX, 04-21 STI, 05-09 LGT, 04-08 FXT

$8000 $88.88 Save 10%
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Auto Parts Store of the Year 2026

Torque Solution Cylinder 4 Coolant Mod Line Kit
Fits: 02-14 WRX, 04-21 STI, 05-09 LGT, 04-08 FXT
4.0 (1)

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Fitment

  • 2004-2008 Subaru | Forester XT
  • 2002–2014 Subaru | WRX
  • 2004–2021 Subaru | WRX STI
  • 2005-2009 Subaru | Legacy GT

Description

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 this kit. Quality is the #1 priority which is why the Torque Solution kit includes CNC'd billet aluminum head and T fittings along with a multi-layer silicone hose and stainless steel clamps.

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

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Limited Manufacturer Warranty

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