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Ships within 48 hours · Estimated delivery Sep 2 - Sep 7
IAG's Stage 4 Cylinder Head Package utilizes a CNC porting program for the V25 heads that was developed over the past five years and tested on the most successful high-horsepower Subarus
The Centroid also performs a Chamber Modification Service to match STI chambers
039 inch head gasket
GTIN: 00887753779175
(x2) 11024AA141 Plugs
IAG Stage 4 CNC Ported Heads w/ +1mm GSC Valves for 02-05 WRX 2.0L S20 (Cams / Lifters Sold Separately). 2020-subaru-wrx sti-kanrai edition IAG's Stage 4 Cylinder HeadIAG Stage 4 CNC Ported Heads with +1mm GSC Valves: 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 OEM 2. 0L S20 head castings directly from Subaru of America. The bare castings are visually inspected then fixtured into our in house Centroid 5 axis CNC Machine,
US$ 505.00
US$ 120.00
