The Radium Engineering Focus ST and Focus RS catch cans are the most functional and integrated kits on the market. The catch cans mount using factory holes and integrate perfectly with the surrounding components. These two oil catch cans (PCV side and Crankcase side) function completely independent of each other and are sold individually or together. They do NOT vent to atmosphere (VTA), thus are emissions and track legal. Closed loop systems remove the oil and sludge from the PCV gases before it is routed to the engine to be burned. A closed loop system also promotes negative crankcase pressure for optimal performance. Furthermore, closed systems prevent unwanted oil vapors from entering the cabin. The dipsticks built into the catch cans allow easy inspection of accumulated fluid. No cutting, drilling or permanent modification to the vehicle is required.
This is the PCV Catch Can Kit ONLY. It fits BOTH the Focus ST and the Focus RS models.
Quality unit. Nicely built. I was not thrilled with having to relocate the fan control module on my 2017 Focus ST but it was not difficult at all. Good instructions if printed out. Installed Radium PCV baffle plate at same time. First time removing intake manifold. Again, not too difficult but cramped space for disconnecting all back side and TB connections. Fit is great (minus the mentioned fan control) and looks great. Not sure how effective yet as I have not driven. yet. Recommendations: Just get the PCV plate and drain kit and do in all at once. Also I will say only have 11000 miles on my stage 2+ FoST, 6000 miles with FMIC and Mountune tune. All intake valves have carbon buildup at bottom of stems at least 1/8 inch thick. Just get this OCC to help prevent the blow-by vapors from encrusting your valves.