IAG Air Oil Separator AOS For 2008-14 Subaru Impreza WRX & 2008-21 STI Color:Red Part# IAG-ENG-7181RD these IAG-Spec pistons feature electroless

these IAG-Spec pistons feature electroless nickel plating and a 2618 Alloy

Shortly after the heads are drilled to fit larger 1/2" or 14mm head studs

and an O-ring sealed dipstick

bored and honed to 99

The bare castings are visually inspected and then fixtured into our in-house Centroid 5-axis CNC Machine

IAG Air Oil Separator AOS For 2008-14 Subaru Impreza WRX & 2008-21 STI Color:Red Part# IAG-ENG-7181RD these IAG-Spec pistons feature electrolessLEAD TIME 3 5 DAYS PROTECT YOUR ENGINE The IAG Performance V3 Street Series Air Oil Separator (AOS) is a worthwhile investment to safeguard and enhance the performance of your Subaru. Developed through years of testing on standard and competitive applications, the Street Series AOS design offers unmatched protection for your engine. IAGs AOS features a 1 liter cast aluminum swirl pot canister that significantly improves oil separation from the PCV