13-21 BRZ/FRS/86 Automatic Drainback Kit for AOS A0011A necessary for full function | A0010A

By using Verus Engineering's drain back system, the Air Oil Seperator can be used for years of service free life. No need to drain, open it up, or do anything but drive the car! This is optional, only those that want this function can purchase this add-on. The AOS works as a typical drain style unit out of the box.

Note: You will need the cam block off plate, PN A0011A, for it to fully function.

Operation
Automatically drains oil caught in the AOS back into the engine.
Does not allow crankcase pressure to enter the can via the check valve.

Included
Billet one-way check valve
-6AN assembled line to correct length

Review our Shipping Policy for delivery details, shipping costs and exclusions.

Eligibility, exclusions, applicable fees and exceptions are detailed in our Return Policy. Restrictions apply to special-order and custom products.

Proposition 65 Warnings: cancer and reproductive harm www.p65warnings.ca.gov