IAG Performance V3 Street Series Air / Oil Separator (AOS) for 2006-07 Subaru Impreza WRX & 2004-07 STI. 2012-subaru-impreza-wrx Brian Crower H-Beam rods with

Brian Crower H-Beam rods with ARP2000 rod bolts are utilized along with King or ACL rod bearings

0 Valve Guide and Seat Machine to cut all intake and exhaust seats with a multi-angle valve job that suits the flow characteristics of GSC's standard size 36mm Intake and 32mm Exhaust valves

Keeps oil out of your intake for improved performance

IAG offers our V2 Oil Pickup

The block is then paired up with our Stage 4 Fully CNC Ported Cylinder Heads to deliver maximum flow for high hp applications

IAG Performance V3 Street Series Air / Oil Separator (AOS) for 2006-07 Subaru Impreza WRX & 2004-07 STI. 2012-subaru-impreza-wrx Brian Crower H-Beam rods withIAG V3 Street Series AOS (Black) The IAG Performance V3 Street Series Air Oil separator (AOS) is an excellent investment to keep your Subaru vehicle running well. The Street Series AOS maintains OEM PCV system functionality, but supplements its capacity. The Street Series AOS design is based on years of extensive testing on standard and competition applications. The Street Series AOS' large, 1 liter, cast aluminum swirl pot canister more effectively