Verus Engineering Air Oil Separator AOS KitEnsure the intake system remains oil free with the Verus Engineering air oil separator. Oil in the system reduces octane, which can lead to detonation, reduction in power, and carbon build up on the intake valves. We utilize four, 5 micron, coalescent filters, one on each inlet and outlet, baffling, and stainless mesh to ensure unprecedented air filtration of the crankcase air. The units ship with an easy to use drain valve and are fully assembled and