Engine Cylinder Head Set

Showing 1–12 of 60 results

High-performance IAG 1150 CNC-ported N25 cylinder head package featuring GSC S3 camshafts and Kelford bucket lifters—engineered for 2018–2019 STI Type RA and 2019–2021 STI models. Requires standalone engine management; not validated for AVCS operation.
Sale! Original price was: $7,999.99.Current price is: $92.89. Add to cart
High-performance IAG 1150 CNC-ported S20 cylinder heads package for 2002–2005 Subaru WRX — featuring combustion chamber optimization, GSC S3 camshafts, and Kelford bucket lifters for maximum airflow and power
Sale! Original price was: $8,249.99.Current price is: $92.22. Add to cart
High-performance IAG 1150 CNC-ported V25 cylinder head package featuring GSC S2 camshafts and Kelford bucket lifters—engineered for maximum airflow and power on 2004–2007 Subaru WRX STI, 2004–2005 Forester XT, and 2005–2009 Legacy GT models.
Sale! Original price was: $7,999.99.Current price is: $92.75. Add to cart
High-performance IAG 1150 CNC-ported V25 cylinder head package featuring GSC S3 camshafts and Kelford bucket lifters—designed for 2004–2007 Subaru WRX STI, 2004–2005 Forester XT, and 2005–2009 Legacy GT. Requires standalone engine management; not AVCS-compatible.
Sale! Original price was: $7,999.99.Current price is: $92.28. Add to cart
High-performance IAG 1150 CNC-ported W25 cylinder head package featuring GSC S3 camshafts and Kelford bucket lifters—designed for 2008–2018 Subaru WRX STI models. Requires standalone engine management; not AVCS-compatible.
Sale! Original price was: $7,999.99.Current price is: $92.97. Add to cart
High-performance IAG 1150 CNC-ported W25 cylinder heads package featuring GSC S2 camshafts and Kelford bucket lifters—engineered for 2008–2018 Subaru WRX STI models.
Sale! Original price was: $7,999.99.Current price is: $92.01. Add to cart
High-performance IAG 1150 cylinder heads package featuring CNC-ported D25 castings, paired with GSC S3 camshafts and Kelford bucket lifters—designed for tuned Subaru EJ25 engines. Requires standalone engine management; not AVCS-compatible.
Sale! Original price was: $7,999.99.Current price is: $92.36. Add to cart
High-performance IAG 950 cylinder head package featuring CNC-ported N25 heads, GSC S2 camshafts, and Kelford bucket lifters—engineered for 2018–2019 STI, 2019–2021 STI (including Type RA)
Sale! Original price was: $6,799.99.Current price is: $92.49. Add to cart
High-performance IAG S20 cylinder heads package for 2002–2005 Subaru WRX: CNC-ported 950cc heads with combustion chamber modification, GSC S2 camshafts, and Kelford bucket lifters for race-tuned reliability and power.
Sale! Original price was: $6,999.99.Current price is: $92.57. Add to cart
IAG 1000 CNC-Ported AW20 Cylinder Head Kit with Kelford B280 Camshafts, Cam Towers, Lifters, and Rocker Arms — Fits 2015–2021 Subaru WRX
Sale! Original price was: $7,699.99.Current price is: $92.59. Add to cart
IAG 1000 CNC-Ported AW20 Drag Cylinder Head Package — No Cams, Towers, Lifters, or Rockers — Fits 2015–2021 Subaru WRX
Sale! Original price was: $4,999.99.Current price is: $92.93. Add to cart
IAG 1150 CNC-Ported D25 Cylinder Heads Kit – No Cams or Lifters – Compatible with 2006–2014 Subaru WRX, 2006–2013 Forester XT, and 2007–2009 Legacy GT
Sale! Original price was: $6,299.99.Current price is: $92.24. Add to cart

Showing 1–12 of 60 results