IAG Performance carries Cylinder Heads and Head Parts for your 2002-2023 Subaru WRX, STI, Legacy GT, Forester XT, and BRZ. We have all the parts you need for your Subaru such as Ported Head Packages, Cams, Sprockets, Valves, Springs, Retainers, Guides, Gaskets, Seals, Chains, Hardware, and more
Here are just a few of the brands we carry-
AEM, Brian Crower, GSC Power Division, IAG Performance, JE Pro Seal, Kelford Cams, Killer B Motorsport, Manley Performance, Subaru, Turnin Concepts, and more.
IAG Timed Long Block Component Packages For Subaru WRX, STI, LGT, FXT
IAG Timed Long Block Install Kits For Subaru EJ25 Engines
IAG Fire-Lock 2.5L Subaru Head Gaskets (1 Pair w/ Fire-Lock Rings) for EJ25 / EJ257, 100mm, .051", for 14mm Head Studs
IAG Fire-Lock 2.4L FA24 Head Gaskets (1 Pair w/ Fire-Lock Rings) For 14mm Head Studs Only
IAG Fire-Lock 2.0L Head Gaskets (1 Pair w/ Fire-Lock Rings) Subaru EJ20, 93.5mm, .051", for 14mm Head Studs Only
IAG Short Block Copper O-Ring Wire & Install Tool Kit
IAG 550 Street Cylinder Heads Package for 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT
IAG 750 CNC Pocket Ported Competition Cylinder Heads Package for 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT
IAG 950 CNC Ported Race Cylinder Heads Package for 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT
IAG 1150 CNC Ported Drag Cylinder Heads Package for 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT
IAG 600 Street Cylinder Heads Package for 2015-21 WRX
IAG 800 CNC Pocket Ported Competition Cylinder Heads Package for 2015-21 WRX
IAG / RCM Alloy Exhaust Camshaft Sprockets Kit For Single AVCS 04-07 STI, 06-14 WRX, 04-13 FXT, 05-09 LGT
IAG / RCM Alloy Camshaft Sprocket Kit For NON AVCS 02-05 WRX
IAG / RCM Alloy Camshaft Sprocket Kit For V1-4 92-98 WRX, 94-98 STI
IAG / RCM Alloy Cam Sprocket (Left Hand Exhaust) for 02-14 WRX, 04-07 STI, 04-13 FXT, 05-09 LGT
IAG / RCM Alloy Cam Sprocket (Right Hand Exhaust) for 02-14 WRX, 04-07 STI, 04-13 FXT, 05-09 LGT
IAG / RCM Alloy Cam Sprocket (Right Hand Intake) For 02-05 WRX
IAG / RCM Alloy Cam Sprocket (Right Hand Intake) for V1-4 1992-98 WRX, 1994-98 STI
IAG / RCM Alloy Cam Sprocket (Left Hand Intake) for V1-4 1992-98 WRX, 1994-98 STI
IAG / RCM Alloy Cam Sprocket (Left Hand Exhaust) for V1-4 1992-98 WRX, 1994-98 STI
IAG / RCM Alloy Cam Sprocket (Right Hand Exhaust) for V1-4 1992-98 WRX, 1994-98 STI
IAG Half Moon Valve Cover Cam Seals (4) For 2002-06 Subaru WRX / STI / FXT / LGT (Black Finish)
IAG Half Moon Valve Cover Cam Seals (4) For 2002-06 Subaru WRX / STI / FXT / LGT (Silver Finish)
IAG Black AVCS Camshaft Sensor Plugs (Pair) For 2002-05 Subaru WRX w/ USDM AVCS Heads
IAG Threaded Plugs for FA Cylinder Heads (Set of 8)
IAG Long Block Basic Installation Kit for EJ25 WRX, STI, FXT, LGT
IAG Long Block Basic Installation Kit for 2015-21 WRX FA20F DIT
IAG Single Valve Spring and Titanium Retainer Set For Subaru EJ Engine
IAG Beehive Valve Spring and Titanium Retainer Set for Subaru EJ Engine
Subaru Right Hand Dual AVCS Cylinder Head for 2008-11 Subaru STI
Subaru Left Hand Dual AVCS Cylinder Head for 2008-11 Subaru STI
Kelford Cams Stage 1 256 / 260 Street Cams For 2008-21 Subaru STI
Kelford Cams Stage 1 264 / 260 Street & Rally Camshaft Set For 2008-21 Subaru STI
Kelford Cams Stage 2 272 / 268 Street / Race Camshaft Set For 2008-21 Subaru STI
Kelford Cams Stage 3 282 / 278 Street / Race Camshaft Set For 2008-21 Subaru STI
Kelford Cams 256 / 260 High Performance Cams for All Subaru 2.5L Single AVCS Engines
Kelford Cams 264 / 260 Hot Street Performance Cams for All Subaru 2.5L Single AVCS Engines
Kelford Cams 272 / 268 Hot Street High HP Cams for All Subaru 2.5L Single AVCS Engines
Kelford Cams 282 / 278 Drag Racing High HP Cams for All Subaru 2.5L Single AVCS Engines
Kelford Cams 256 / 264 Street & Rally Cam Shafts For 2002-05 Subaru WRX Non AVCS EJ20 Engines
Kelford Cams 268 / 264 Street & Race Cam Shafts For 2002-05 Subaru WRX Non AVCS EJ20 Engines
Kelford Cams 199-E 274 / 270 Street & Race Cam Shafts For 2002-05 Subaru WRX Non AVCS EJ20 Engines
Kelford Cams 199-J 264 / 260 Rally & Race Camshafts For 2002-05 Subaru WRX Non AVCS EJ20 Engines
Kelford Cams 199-K 272/268 Duration Cam Shafts For 2002-05 Subaru WRX Non AVCS EJ20 Engines
Kelford Cams 199-L 282 / 278 Drag Race Cam Shafts For 2002-05 Subaru WRX Non AVCS EJ20 Engines
Kelford Cams 262/264 Degree Camshafts for 2015-21 Subaru WRX FA20 DIT - 264-EZ
Kelford Cams 262/264 Degree Camshafts for 2022+ Subaru WRX FA24 DIT - 269-EZ
Kelford Cams 272/276 Degree Camshafts for 2022+ Subaru WRX FA24 DIT - 269-A
Kelford Cams 272/276 Degree Camshafts for 2015-21 Subaru WRX FA20 DIT - 264-A
Kelford Cams 280/286 Degree Camshafts for 2015-21 Subaru WRX FA20 DIT - 264-B
GSC S1 Billet Camshaft Set for the 2008-21 Subaru STI with Dual AVCS
GSC S1 Billet Camshaft Set for the 04-07 STI, 06-14 WRX, 04-13 FXT, 05-12 LGT with Intake AVCS - 7025S1
GSC S1 Billet Camshaft Set for the 04-07 STI, 06-14 WRX, 04-13 FXT, 05-12 LGT with Intake AVCS
GSC S1 Billet Camshaft Set for the 02-05 WRX EJ20 (Non AVCS) - 7020S1
GSC S1 Billet Camshaft Set for the 02-05 WRX EJ20 (Non AVCS)
GSC P-D Subaru EJ257 w/Dual AVCS S1 Cams 266/264 Billet - 7026S1
GSC P-D Subaru EJ20 JDM / Euro Spec STi S1 Cams 268/266 (Not compatible w/USA Spec Engines) Billet - 7027S1
GSC S2 Billet Camshaft Set for the 2008-21 Subaru STI with Dual AVCS
GSC S2 Billet Camshaft Set for the 2008-20 Subaru STI with Dual AVCS - 7026S2
GSC S2 Billet Camshaft Set for the 04-07 STI, 06-14 WRX, 04-13 FXT, 05-12 LGT with Intake AVCS - 7025S2
GSC S2 Billet Camshaft Set for the 04-07 STI, 06-14 WRX, 04-13 FXT, 05-12 LGT with Intake AVCS
GSC S2 Billet Camshaft Set for the 02-05 WRX EJ20 (Non AVCS)
GSC P-D 02-05 2.0L WRX S2 Cams 272/272 Billet - 7020S2
GSC P-D Subaru EJ20 JDM / Euro Spec STi S2 Cams 272/272 (Not compatible w/USA Spec Engines) Billet - 7027S2
GSC S3 Billet Camshaft Set for the 2008-21 Subaru STI with Dual AVCS
GSC S3 Billet Camshaft Set for the 04-07 STI, 06-14 WRX, 04-13 FXT, 05-12 LGT with Intake AVCS - 7025S3
GSC S3 Billet Camshaft Set for the 04-07 STI, 06-14 WRX, 04-13 FXT, 05-12 LGT with Intake AVCS
GSC S3 Billet Camshaft Set for the 02-05 WRX EJ20 (Non AVCS)
GSC P-D Subaru EJ20 JDM / Euro Spec STi S3 Cams 282/282 (Not compatible w/USA Spec Engines) Billet - 7027S3
Brian Crower Subaru EJ205 - 02-05 WRX Camshafts - Stage 2 - Set of 4 - BC0601
Brian Crower Subaru EJ257 - 04-07 STi 06-07 WRX Camshafts - Stage 2 - Set of 4 - BC0621
Brian Crower 08+ STi Camshafts - Stage 2 - Set of 4 - BC0623
Brian Crower Subaru EJ257 - 04-07 STi 06-07 WRX Camshafts - Stage 3 - Set of 4 - BC0622
Brian Crower 08+ STi Camshafts - Stage 3 - Set of 4 - BC0624
Brian Crower Subaru EJ205 - 02-05 WRX Camshafts - Stage 3 - Set of 4 - BC0602
Subaru Right Intake Camshaft for 2022+ Subaru WRX FA24F
Subaru Left Intake Camshaft for 2022+ Subaru WRX FA24F
Subaru Left Exhaust Camshaft for 2022+ Subaru WRX FA24F
Subaru Right Exhaust Camshaft for 2022+ Subaru WRX FA24F
Brian Crower Adjustable Cam Gears for Subaru EJ205/EJ257 (Set of 2) - Exhaust Side Only - BC8860-EX
Brian Crower Adjustable Cam Gears for Subaru EJ205/EJ257 (Set of 4) - BC8860
Subaru Driver Side Exhaust Cam Gear Sprocket for 2002-14 WRX, 04-07 STI, 05-09 LGT, 04-08 FXT
Subaru Drivers Side AVCS Intake Cam Gear For 2006-14 WRX, 2004-21 STI, 2004-13 FXT & 2005-12 LGT
Subaru Intake Cam Gear Sprocket for 2002-05 WRX (Passenger Side)
FHI Right Side Exhaust Cam Sprocket Fits 2008-21 Subaru STI
Subaru Left Side Exhaust Cam Sprocket For 2008-21 STI, 10-12 LGT
Subaru Left Side Exhaust Cam Sprocket For 2022-23 Subaru WRX FA24F
Subaru Left Side Intake Cam Sprocket For 2022-23 Subaru WRX FA24F
Subaru Passenger Side AVCS Intake Cam Gear For 2006-14 WRX, 2004-21 STI, 2004-13 FXT & 2005-12 LGT
Subaru Passenger Side Exhaust Cam Gear Sprocket for 2002-14 WRX, 04-07 STI, 05-09 LGT, 04-08 FXT
Subaru Right Side Exhaust Cam Sprocket For 2022-24 Subaru WRX FA24F
Subaru Right Side Intake Cam Sprocket For 2022-23 Subaru WRX FA24F
Left Side Exhaust Cam Sprocket For 2015-21 Subaru WRX FA20 DIT
Left Side Intake Cam Sprocket For 2015-21 Subaru WRX FA20 DIT & 17-20 BRZ MT
Right Side Exhaust Cam Sprocket For 2015-21 Subaru WRX FA20 DIT
Right Side Intake Cam Sprocket For 2015-21 Subaru WRX FA20 DIT, 17-20 BRZ
Brian Crower Single Valve Spring & Titanium Retainer Set For Mitsubishi 4G63 Eclipse / EVO
Brian Crower Subaru EJ205-WRX/EJ257-STi Single Spring & Titanium Retainer Kit - BC0600
Brian Crower Subaru EJ Series / Toyota 3SGTE/GE Single Spring & Steel Retainer Kit - BC0600S
Brian Crower Subaru EJ205/EJ207/EJ257 Series Dual Spring/Titanium Retainer/Spring Seal Kit - BC0610
Brian Crower Subaru BRZ/Scion FR-S/Toyota GT86 4UGSE Single Spring & Titanium Retainer Kit w/ Seats - BC0650
GSC Beehive Valve Springs and Titanium Retainer Set for Subaru EJ Engines
GSC Single Valve Springs and Titanium Retainer Set for 2015-21 Subaru WRX FA20, 13-20 BRZ-FR-S
GSC P-D 12+ Subaru BRZ / Scion FR-S Single Spring, Chromoly Seat and Titanium Retainer Kit - 5756
GSC P-D Subaru EJ257 Beehive Valve Spring & Ti Retainer Kit (Use w/OE Spring Seats) - 5043
Kelford Cams Dual Valve Springs & Titanium Retainers for 2015-25 Subaru WRX FA20F/FA24F
Manley Beehive Valve Spring & Titanium Retainer Set For 2002-14 Subaru WRX, 2004-21 STI, 05-12 LGT, 04-13 FXT
Manley Beehive Valve Spring & Titanium Retainer Set For 2002-14 Subaru WRX, 2004-21 STI, 05-12 LGT, 04-13 FXT - 26180
Manley Beehive Valve Spring & Titanium Retainer Set For 2002-14 Subaru WRX, 2004-21 STI, 05-12 LGT, 04-13 FXT - 26185
Kelford Cams Subaru High Performance Valve Spring Set (Single Spring Style)
Brian Crower Subaru EJ205-WRX/EJ257-STi Single Valve Springs - BC1600
GSC Power-Division Beehive Valve Spring Kit For 2015-21 Subaru WRX, 13-17 BRZ / FR-S - 5056
GSC P-D Subaru EJ Turbo Series Valve Spring Kit (set of 16) - 5743
Manley Subaru WRX/STI 16pc Valve Springs (1.050/.755) (for use with 23180-16 Retainers) - 22180-16
Kelford Cams Subaru Beehive Valve Spring and Ti Retainer Set
Kelford 35mm DLC Valve Adjustment Bucket | 4.70mm-5.18mm (SOLD INDIVIDUALLY) fits 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT
GSC Subaru EJ Valve Spring Seats OEM Style Replacement
GSC Subaru EJ Valve Spring Seats OEM Style Replacement - GSC1005
Manley Subaru WRX/STi (1.050/.755) 16pc Titanium Retainers (for use with 22180-16 Springs) - 23180-16
Brian Crower Subaru EJ205-WRX/EJ257-STi Titanium Retainers - Set of 16 - BC2300-16
Brian Crower Subaru EJ205/EJ257 Single Groove Valve Stem Keepers/Locks (fits BC2160) - BC2960
GSC Exhaust Valve Guide Set with Depth Stopper For 2015-21 Subaru WRX FA20, 2013-20 BRZ / FR-S
GSC Intake Valve Guide Set with Depth Stopper For Subaru EJ20 / EJ25
GSC Exhaust Valve Guide Set with Depth Stopper For Subaru EJ20 / EJ25
GSC Intake Valve Guide Set with Depth Stopper For 2015-21 Subaru WRX FA20, 2013-20 BRZ / FR-S
GSC Exhaust Valve Guide Set with Depth Stopper For Subaru EJ20 / EJ25 - 3025-8
GSC Intake Valve Guide Set with Depth Stopper For Subaru EJ20 / EJ25 - 3026-8
GSC Traditional Exhaust Valve Guide Set For Subaru EJ20 / EJ25 - 3027-8
GSC Traditional Intake Valve Guide Set For Subaru EJ20 / EJ25 - 3028-8
GSC P-D Subaru/Scion BRZ/FR-S FA20 Manganese Bronze Exhaust Valve Guide - Set 8 - 3063-8
GSC P-D Subaru/Scion BRZ/FR-S FA20 Manganese Bronze Intake Valve Guide - Set 8 - 3064-8
GSC Power-Division +1mm Oversize Intake Valves For 2015-21 Subaru WRX
GSC Power-Division Standard Size Intake Valves For 2015-21 Subaru WRX
Manley Race Flo 37mm Intake Valve Set For Subaru WRX / STI / FXT / LGT (8)
GSC Super Alloy 32mm Standard Exhaust Valve Set for Subaru EJ20 / EJ25
GSC Power-Division +1mm Exhaust Valves For 2015-21 Subaru WRX
GSC Super Alloy 33mm Oversize Exhaust Valve Set for Subaru EJ20 / EJ25
GSC Power-Division Standard Exhaust Valves For 2015-21 Subaru WRX
GSC Standard Size 36mm Intake Valve Set for Subaru EJ20 / EJ25 Turbo
GSC Oversize Size 37mm Intake Valve Set for Subaru EJ20 / EJ25 Turbo
Manley 00-03 Subaru WRX (EJ20) / 04 STI Exhaust 32mm Stainless Extreme Duty Valve - 11137-1
Manley Extreme Duty 32mm Exhaust Valve Set For Subaru WRX / STI FXT, LGT (8) - 11137-8
Manley Race Flo 36mm Intake Valve Set For Subaru WRX / STI / FXT / LGT (8) - 11138-8
Manley Extreme Duty 33mm Exhaust Valve Set For Subaru WRX / STI FXT, LGT (8) - 11139-8
Manley Race Flo 37mm Intake Valve Set For Subaru WRX / STI / FXT / LGT (8) - 11140-8
Manley 00-03 Subaru WRX (EJ20) / 04 STI Exhaust 32mm Stainless Race Master Valve (Single) - 11155-1
Manley 00-03 Subaru WRX (EJ20) / 04 STI Exhaust 32mm Stainless Race Master Valves - 11155-8
Manley Subaru WRX EJ205/STI EJ257 33mm Race Master Exhaust Valves (Set of 8) - 11171-8
GSC P-D Subaru Subaru EJ205/EJ207/EJ257 Chrome Polished Intake Valve - 36mm Head (STD) - Single - 2012-01
GSC P-D Subaru Subaru EJ205/EJ207/EJ257 Chrome Polished Exhaust Valve - 33mm Head (+1mm) - Single - 2013-01
GSC P-D Subaru EJ205/EJ207/EJ257 Chrome Polished Intake Valve - 37mm Head (+1mm) - Single - 2014-01
GSC P-D EJ series EJ205/EJ207/EJ257 Chrome Polished Super Alloy Exhaust Valve-32mm Head(STD) - 2015-01
GSC P-D Subaru EJ20/EJ257 Turbo Chrome Polished Super Alloy Exhaust Valve - 33mm Head (+1mm) -Single - 2017-01
GSC P-D Subaru/Scion BRZ/FR-S FA20 Chrome Polished Exhaust Valve - 29mm Head (STD) - Single - 2121-01
GSC P-D Subaru/Scion BRZ/FR-S FA20 21-4N Chrome Polished Intake Valve - 35mm Head (STD) - Single - 2122-01
Manley 00-03 Subaru WRX (EJ20) / 04 STi Intake 37mm Stainless Race Flo Valve (1 valve) - 11140-1
GSC P-D Subaru Subaru EJ205/EJ207/EJ257 Chrome Polished Exhaust Valve - 32mm Head (STD) - Single - 2011-01
Brian Crower Valve Guides - Subaru EJ205/EJ257/EJ257B 6.0mm Intake (Quantity of 8) - BC3960
Brian Crower Valve Guides - Subaru EJ205/EJ257/EJ257B 6.0mm Exhaust (Quantity of 8) - BC3961
GSC Viton 6mm Valve Stem Seal Set For Subaru EJ205 / EJ207 / EJ257
JE Pro Seal Subaru EJ25 / EJ257 101.3mm Head Gasket 0.039in (1) For 2007-21 STI
JE Pro Seal Subaru EJ25 / EJ257 100mm Head Gasket 0.039in (1) For 04-06 STI
JE Pro Seal Subaru EJ25 / EJ257 100mm Head Gasket 0.051in (1) For 04-06 STI
JE Pro Seal Subaru EJ25 / EJ257 101.3mm Head Gasket 0.039in (2) For 2007-21 STI
JE Pro Seal Subaru EJ25 / EJ257 100mm Head Gasket 0.051in (2) For 04-06 STI
JE Pro Seal Subaru EJ25 / EJ257 100mm Head Gasket 0.039in (2) For 04-06 STI
JE Pro Seal Subaru EJ20 94mm Head Gasket 0.039in (1) For 02-05 WRX
JE Pro Seal Subaru EJ20 94mm Head Gasket 0.039in (2) For 02-05 WRX
TiC FU Cam Bolt Kit For 2002-05 Subaru WRX Non-AVCS EJ20 Engines
TiC FU Cam Bolt Kit For 2008-21 Subaru STI with Dual AVCS EJ25
TiC FU Cam Bolt Kit For 2004-07 Subaru STI, 06-14 WRX, 05-09 LGT, 04-13 FXT Single AVCS EJ25
Brian Crower ARP2000 Cam Gear Bolt (AVCS) for Subaru EJ25 (1)
Brian Crower ARP2000 Cam Gear Bolt Set (4) Fits 08-21 Subaru STI Dual AVCS
Brian Crower ARP2000 Cam Gear Bolt Set (4) - Fits 02-05 Subaru WRX Non AVCS
Brian Crower ARP2000 Cam Gear Bolt (Non-AVCS) for Subaru EJ20 & EJ25 (1)
Brian Crower ARP2000 Cam Gear Bolt Set (4) Fits 06-14 WRX, 04-07 STI Single AVCS
Subaru Cam Sprocket Bolt For 2017-25 WRX, 16-25 BRZ
Subaru Cam Gear Sprocket Bolt Fits 2002-05 WRX Intake Cams & All Non-AVCS Exhaust Cams
Subaru Cam Gear Bolt Fits All AVCS Intake & Exhaust Cam Sprockets
Top Right Timing Chain Guide For 2015-24 Subaru WRX, 22-24 BRZ
Timing Chain Lever Tensioner For 2015-24 Subaru WRX, 13-24 BRZ
Subaru Chain Tensioner For 2015-21 Subaru WRX, 13-20 BRZ
Lower Left Timing Chain Guide For 2015-25 Subaru WRX, 13-25 BRZ
GSC P-D Subaru EJ257/EJ207/EJ205 Viton 6mm Valve Stem Seal Set - 1022
Killer B Fumoto Quick Change Valve 16mm-1.5 - F108S
GSC P-D 4G63T Evo 4-9 OD .4750in ID .2598in OL 1.950in Exhaust Valve Guide - Single - 3001
Subaru Timing Chain Guide Bolt - M6x11x11 fits 2015-24 WRX
Subaru Timing Chain Guide Bolt for 2015-24 WRX, 13-25 BRZ
Subaru Left Hand Outer Timing Chain Guide for 2015-24 WRX, 22-25 BRZ
Subaru Left Hand Outer Timing Chain Guide Bolt for 2015-24 WRX, 13-25 BRZ
Subaru FA20/FA24 Cam Carrier Filter Screen for 2015-24 WRX, 13-25 BRZ
Subaru Cam Carrier O-Ring For 2015-24 WRX, 2013-25 BRZ
