GrimmSpeed Air/Oil Separator Hardware Kit - 2002-2007 WRX, 2004-2021 STI

Replace missing installation fittings and fasteners on an existing GrimmSpeed Air/Oil Separator. This hardware kit is useful when servicing or reinstalling a second-hand AOS.

Included Components

• 2 × 1/2-inch barb couplers.
• 1 × 1/2-inch rubber cap.
• 8 zip ties.

Vehicle Compatibility

• 2002–2007 Subaru WRX with the corresponding GrimmSpeed Air/Oil Separator.
• 2004–2021 Subaru STI with the corresponding GrimmSpeed Air/Oil Separator.

Hardware kit only; the separator assembly and replacement hose are not included in the listed contents. GrimmSpeed recommends a separate AOS Rebuild Kit when the separator’s internal O-rings need replacement after repeated heat cycles.

Manufacturer part number: GRM078052