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Torque Solution Cylinder 4 Coolant Mod - 02-14 WRX / 04-21 STI

SKU: TS-SU-585

$63.32 $84.99

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 kn. . . Show More >