Catch Can Kit CCV for Ford Mustang GT 11-14 Fluid Lock Radium Engineering - USA-RAD-20-0279-FL - An oil catch can is essential on a performance vehicle to protect the engine from elevated levels of crankcase blow-by accumulated from high performance driving. Excess oil saturated air circulating back into the air intake stream can lead to degraded performance.  The Crankcase Vent (CCV) Catch Can Kits (11-14 = 20-0279-FL, 15-17 = 20-0287-FL) mount on the front left engine bank of the Mustang GT. 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. If the engine is turbocharged or supercharged oil accumulation can occur in the intercooler which can lower the thermal efficiency properties of the heat exchanger and lead to decreased performance. Dual Catch Can Kit Part Numbers: 11-14 Mustang GT: 20-0324-FL contains 1x PCV catch can kit 20-0267-FL and 1x crankcase catch can kit 20-0279-FL. Instruction PDF