IAG Stage 5 CNC Ported Heads w/ +1mm Ferrea Valves & GSC S3 Cams for 08-17 STI W25 Casting. 2017-subaru-wrx sti-sport-tech IAG 900 EJ25 Closed Deck

IAG 900 EJ25 Closed Deck Long Block w/ Stage 4 Heads: The IAG Performance Hand-Built Subaru EJ25 Closed Deck Long Block Engine Packages are a complete

Chamber Modification

5 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

Emissions : Not Legal For C

The engine mounts feature cold rolled gold zinc plated steel brackets with gold zinc plated pins

IAG Stage 5 CNC Ported Heads w/ +1mm Ferrea Valves & GSC S3 Cams for 08-17 STI W25 Casting. 2017-subaru-wrx sti-sport-tech IAG 900 EJ25 Closed DeckIAG's Stage 5 Cylinder Head Package utilizes a CNC porting program for the W25 heads that was developed over the past five years and tested on the most successful high horsepower Subaru's. The ported head package starts with brand new W25 OEM WRX STI head castings directly from Subaru of America. The bare castings are visually inspected then fixtured into our in house Centroid 5 axis CNC Machine, one of the most advanced precision engine machining