Radium Engineering Pcv Fluid Lock Catch Can Kit Ford Focus Ecoboost 2015-2018This kit is used in both the Ford Focus ST and RS models with the turbocharged EcoBoost engine. It mounts on the front left core support near the radiator. For clearance purposes, Focus ST installations REQUIRES Radium 20 0356 Sound Symposer Delete Kit or other symposer delete kit to be installed. This catch can runs inline with the PCV (positive crankcase ventilation) valve and retains it's factory function. When the intake manifold pressure is close