VERUS ENGINEERING A0306A AOS Drain Kit for SUBARU WRX / STI (VA / GR / GV)

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VERUS ENGINEERING A0306A AOS Drain Kit for SUBARU WRX / STI (VA / GR / GV) The VERUS ENGINEERING A0306A AOS Drain Kit is an optional add-on designed to enhance the long-term usability of the Verus Air Oil Separator on Subaru WRX / STI models. By enabling automatic oil return from the AOS back into the engine, this kit eliminates the need for manual draining or periodic disassembly, allowing for continuous, maintenance-free operation during normal vehicle use. When installed, the drai