Blox Cylinder 4 Coolant Flow Upgrade Kit Subaru WRX 2002-2014 / STI 2004-2021

Product Description

Part #: BXCC-50000

BLOX Racing Coolant Flow Upgrade Kit is specifically intended for the Subaru EJ20 and EJ25 left hand cylinder head’s #4 cylinder.

Longtime Subaru enthusiasts and tuners know the inherent cooling design oversight in Subaru’s left hand cylinder head, in the #4 cylinder, that always sees the hottest temps due to a lack of flow.

This kit helps to increase coolant flow to cylinder 4 and minimizes the overall risk of overheating and detonation, by drawing in flow from the water pump.

APPLICATIONS

2004-2021 STi

2002-2014 WRX

2005-2008 Forester XT

2005-2009 Legacy GT

05-09 outback xt