Stage X Cylinder 4 Cooling Mod Kit - Street Spec

Cylinder 4 cooling has long been a known issue on Subaru EJ family engines.

The nature of the water passageways in this area means a lack of cooling can lead to higher temperatures around this cylinder. This easy-to-fit Street Spec cooling kit is the answer.

Billet fittings are fixed onto quality coolant hose with genuine Subaru water hose clamps. The assembly fits into the unused port at the back of the block, at cylinder 4's location, and is then tee'd into the water matrix pipe directly above using the supplied fittings on the tee piece. The billet barb fitting has the correct diameter to give the right flow rate around cylinder 4 without over-cooling, and the 2 supplied pipe lengths ensure the position and bend of the pipe are correct.

Note: on some vehicles the position of the metal water pipe the kit connects to varies slightly. The pipe can be trimmed if required to make sure the hose does not kink.