Torque Solution Cylinder 4 Coolant Mod for EJ WRX/STi (TS-SU-585)

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The Torque Solution cylinder 4 coolant mod for 02-14 WRX and 2004-2021 STi was designed to increase coolant flow to the cylinder #4 head area. This additional coolant flow helps re duce cylinder #4 coolant temps and keeps the temps more uniform compared to the rest of the cylinders.This will help 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! Includes CNC machined billet aluminum head and T fittings along with a multi-layer silicone hose and stainless steel clamps.Vehicle Fitment:2002-2014 Subaru WRX2004-2021 Subaru STiFeatures:• CNC 6061 Billet Aluminum Fittings• Black Anodized• Multi-Layer Silicone Hose• Stainless Steel Clamps• Limited Lifetime WarrantyIncludes:(1) Billet Head Fitting(1) Billet T-Fitting(1) Silicone Hose(4) Stainless Steel Clamps See more Torque Solution Products Show more