Radium Engineering Coolant Tank Kit for 2013+ Ford Focus ST / 2016+ Ford Focus RS Focus RS 31% increase in internal volume

31% increase in internal volume compared to stock cold-side pipe

and a COBB nameplate transform the engine bay to look as sharp as the iconic Raptor exterior

Installation requires no modifications to the engine bay

and lower coolant hoses

Radium Engineering Coolant Tank Kit for 2013+ Ford Focus ST / 2016+ Ford Focus RS Focus RS 31% increase in internal volumeClick here to download installation instructions (PDF) This kit is for the 2013+ Ford Focus ST and Ford Focus RS. It is designed to replace the plastic coolant tank found at the front right of the engine bay. It maintains the same function as the OEM coolant tank while providing an additional 160mL of fluid volume. The Radium Engineering coolant expansion tank is CNC machined from aluminum and consists of two halves that are bolted together. The