Subaru WRX 15-21 AOS Air Oil Separator Color:Black The DC5STK kit comes in

The DC5STK kit comes in three variations depending the transmission being used:

Stage 3 307

Civic Non-Si w/ Race MAF Housing (size-75mm)

Burton Racing also has these products available for this swap:

One piece design

Subaru WRX 15-21 AOS Air Oil Separator Color:Black The DC5STK kit comes inAir oil separator removes oil from your engine ventilation system so the oil does not get into the intake system. Vehicle Fitment: Subaru WRX 2015 2021 Key Features: Retains OEM PCV valve Engine performs cleaner and more efficiently Precision CNC machined 6061 billet aluminum High quality continental hose Includes fittings, caps, and zip ties 1 liter capacity Integrated ORB ports Aluminum body is powder coated black or red wrinkle finish Three 8 ORB