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PCV Side Catch Can Kit (P/N 20-0315)
20-0315 Compatibility:
16-18 Focus RS
15-18 Focus ST
This 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 to or greater than atmospheric pressure the PCV "check" valve closes and thus this hose experiences no flow. Conversely the PCV hose will experience "metered" vacuum when the engine is idling steady state cruising and decelerating. This would normally draw unwanted crankcase vapor unspent fuel and oil sludge into the intake manifold immediately after a high load run. Note: Because the Radium catch cans are pressure sealed they are great for this boosted application so intake manifold connection is permitted.