Torque Solution Cylinder 4 Coolant Mod for EJ WRX/STi (TS-SU-585) Porsche most accurate speedometer available

most accurate speedometer available

(2) M8 x 30 Bolts

Not recommended for forced induction applications

it also replaces both hard lines as well

your factory bias is maintained as well as your ABS efficiency

Torque Solution Cylinder 4 Coolant Mod for EJ WRX/STi (TS-SU-585) Porsche most accurate speedometer availableThe 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 reduce 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