Product Overview
Radium Catch Can Kit, Crankcase, 2016+ Focus RS
This catch can kit mounts on the back LH side of the engine bay. The Focus RS requires kit 20-0316, while the Focus ST requires kit 20-0357. This is due to different mounting bracket designs necessary because of the subtle changes between the engine bays.
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 crankcase breather port. At low loads it experiences atmospheric pressure, but when the engine is at high load (WOT), this hose will experience high flow out of the crankcase. This would normally lead to oil and sludge accumulation in the air filter intake pipe. Oil accumulation will occur in the intercooler which lowers the thermal efficiency properties of the heat exchanger and leads to decreased performance.
