IAG Performance V3 Street Series Air / Oil Separator (2004-2007 STI & 2006-2007 WRX)

This is the IAG Performance V3 Street Series Air / Oil Separator. This latest design prevents harmful oil or vapors from coating your intake system which can lead to a lack of performance and long-term engine damage. KEEPS OIL OUT Keeping oil out of the engine intake tract is extremely important in preventing premature mechanical failure and maintaining performance Prevents oil from coating the internal portions of the intake, intercooler, and piping Prevents premature failure of the rubber or silicone hoses, which can lead to failed connections Once the oil reaches the intake tract it will directly enter the intake manifold and then the combustion chamber of the engine Oil inside of the combustion chamber can cause detonation and preignition, high emissions, smoke, loss of power, decreased gas mileage, and even catastrophic engine failure leading to expensive repair bills  PCV RECIRCULATION The Street Series maintains the OEM PCV system functionality but supplements its capacity The A