Industry first DOHC EJ Cylinder 4 Combustion Chamber Cooling kit increases coolant flow in the LH head to improve reliability by reducing detonation causing hot spots, reducing EGT delta and improving overall cooling system performance.
This kit fits all pre-08 WRX, STi and Legacy which use a shorter hose than the 08+.
Each kit contains:
1x Coolant pipe assembled with a stainless steel T, high grade silicon hose, Stainless Pinch clamps, Custom machined and anodized 6061 fitting.
1x Instruction Sheet