Cobb Tuning Subaru Air/Oil Separator WRX 2015-2021 - 843615 101mm DN4-XTR6 kit features an Xtreme

DN4-XTR6 kit features an Xtreme pressure plate for the most demanding driver

Note: JZX100 Chassis

3001007 is a performance street disc and the most popular disc purchased

Vehicle speed can be achieved by using a GPS-enabled dash or by adding a Vehicle Dynamics Module

2ft of 1/4in Vacuum Hose w/ zipties

Cobb Tuning Subaru Air/Oil Separator WRX 2015-2021 - 843615 101mm DN4-XTR6 kit features an XtremeEMISSIONS 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number: D 660 25 D 660 45 DESCRIPTION The COBB Air Oil Separator is placed within your Subarus crankcase ventilation system and helps to prevent oil vapors from being introduced into the intake system.