The air and oil separator is a must have unit for all Subaru engines! Constructed from high-quality aluminum, this handy unit will help you lower emission, keep the intake charge pipe clean, reduce the oil burned in the engine and reduce the detonation due to a dirty intake charge pipe. Tomioka Racing AOS is compatible with factory PCV system and it drains oil into the factory oil pan automatically,

Contents:

• Air Oil Separator x 1
• 8 ft. Oil Resistant Hose x 1
• 6 in. Black Zip Ties x 10
• in. Hose Fittings x 2,
• in. Adapter x 1
• in. Rubber Cap x 1