IAG Stage 4 CNC Ported Heads w/ +1mm GSC Valves & GSC S2 Camshafts for 18-20 STI N25 Casting. 2007-subaru-impreza-wrx Dimension: 4 x 0

Dimension: 4 x 0

The pan is designed to work with the IAG

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

5 Short Block has a power output rating of 675BHP

IAG Stage 4 CNC Ported Heads w/ +1mm GSC Valves & GSC S2 Camshafts for 18-20 STI N25 Casting. 2007-subaru-impreza-wrx Dimension: 4 x 0IAG 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