IAG Stage 4 CNC Ported Heads w/ +1mm GSC Valves & GSC S2 Camshafts for 18-20 STI N25 Casting. 2007-subaru-impreza-wrx or our new PN# IAG-ENG-2210

or our new PN# IAG-ENG-2210 Windage Tray

bottom end location)

The IAG 900 Long Block features our Magnum Closed Deck Short Block that utilizes a brand new EJ25 Subaru case that is converted to closed deck and is bored and honed to 99

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

GTIN: 00887753777836

IAG Stage 4 CNC Ported Heads w/ +1mm GSC Valves & GSC S2 Camshafts for 18-20 STI N25 Casting. 2007-subaru-impreza-wrx or our new PN# IAG-ENG-2210IAG Stage 4 Ported Heads with +1mm GSC Valves & Cams: IAG's Stage 4 Cylinder Head Package utilizes a CNC porting program for the WRX STI heads that was developed over the past five years and tested on the most successful high horsepower Subarus. The ported head package starts with brand new WRX STI OEM N25 head castings directly from Subaru of America. The bare castings are visually inspected then fixtured into our in house Centroid 5 axis CNC