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more efficient system
Each knob undergoes a meticulous manufacturing process starting with a mirror-polished finish followed by a hand-applied anodizing technique
designed to provide superior protection and a bold rally-inspired style
This base is the essential foundation for smooth
Perrin Air Oil Separator V2 Red 2002-2021 WRX / 2004-2021 STi YMM_2021_Honda more efficient systemPerrin Air Oil Separator V2 Red 2002 2021 WRX 2004 2021 STi Ceramic Coated CNC Machined Engine Health Component Overview The Perrin Air Oil Separator (AOS) V2 is a precision engineered component designed to improve the crankcase ventilation system on Subaru WRX and WRX STI models spanning 2002 through 2021. By effectively separating oil vapors from the crankcase gases before they reach the intake manifold, this AOS helps prevent carbon buildup that
