Catch Can Kit CCV for Ford Focus RS 16-18 Fluid Lock Radium Engineering - USA-RAD-20-0316-FL - 20-0316 Compatibility: 16-18 Focus RS 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. The exact contents of 20-0316 is shown in the photo below (similar to 20-0357-FL). Kit includes the following: -Anodized oil catch can with integrated condenser and dipstick-Anodized laser cut Focus specific mounting bracket-Anodized aluminum -AN adapter fittings and hose ends-Enough PCV hose for custom applications  -Stainless steel mounting hardware  Instruction PDF