IAG Stage 5 CNC Ported Heads w/ +1mm Ferrea Valves & GSC S3 Cams for 02-05 WRX S20 Casting. 2000-subaru-legacy-l GTIN: 00887753777355

GTIN: 00887753777355

SB10-XTG6 kit features an Xtreme pressure plate for the most demanding driver

All sold separately)

The heads are then fixtured into our in-house Centroid 5-axis CNC Machine

This is a common practice on many street vehicles as well as race cars that utilize a rotated turbo system

IAG Stage 5 CNC Ported Heads w/ +1mm Ferrea Valves & GSC S3 Cams for 02-05 WRX S20 Casting. 2000-subaru-legacy-l GTIN: 00887753777355IAG's Stage 5 Cylinder Head Package utilizes a CNC porting program for the S20 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 S20 OEM WRX 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