Moroso Air Oil Separator Twin Small Body Black Subaru STI 2004-2007 / WRX 2006-2007 Keri Monitor CNC-machined for superior strength

CNC-machined for superior strength

OEM Fitment with Enhanced Design

Its brass piston is both strong and light

TA4070-NS04A / TA4070-NS04B

lightweight design while increasing the strength of each lug

Moroso Air Oil Separator Twin Small Body Black Subaru STI 2004-2007 / WRX 2006-2007 Keri Monitor CNC-machined for superior strengthPart: # 85627 This is the Moroso Small Body Air Oil Separator Kit. The intended purpose of this system is to keep the excess crankcase vapors, residual oil, and moisture from building inside the intake manifold and to more importantly, keep the factory crankcase ventilation system from adding a layer of oil which can cause detonation issues. This is a 2 tank system, and the tanks are made from billet aluminum, and this kit will come with all the