Yeah, that is the actual oil/vapor separator and is necessary. It is replaced on a scheduled basis.
C2OZ 6A631-A - FA-58
Gasket PN- C2OZ 6870-A (FEL-PRO should have it)
Valve PN- C1AZ 6A666-A
__________________
*****
- WHY IS IT ... 
-
... that everything you buy in the grocery store is either wrapped in or contained in plastic but the government doesn't want you to carry it out in a plastic bag?
WONDERING IN W(BY GOD)V ...
DIAGNOSED CDO - (OCD In Correct Alphabetical Order)