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Vendor:IAG PerformanceIAG Fire-Lock 2.5L Subaru Head Gaskets (1 Pair w/ Fire-Lock Rings) for EJ25 / EJ257, 100mm, .051", for 14mm Head Studs
Regular price $329.99Sale price $329.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Fire-Lock 2.0L FA20 Head Gaskets (1 Pair w/ Fire-Lock Rings) For 14mm Head Studs Only
Only 10 leftRegular price $329.99Sale price $329.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Fire-Lock 2.0L Head Gaskets (1 Pair w/ Fire-Lock Rings) Subaru EJ20, 93.5mm, .051", for 14mm Head Studs Only
Only 16 leftRegular price $329.99Sale price $329.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Fire-Lock 2.4L FA24 Head Gaskets (1 Pair w/ Fire-Lock Rings) For 14mm Head Studs Only
Only 11 leftRegular price $329.99Sale price $329.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG / RCM Alloy Camshaft Sprocket Kit For V1-4 92-98 WRX, 94-98 STI
Only 5 leftRegular price $549.99Sale price $549.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG / RCM Alloy Camshaft Sprockets (4 PCS) Kit For NON AVCS 02-05 WRX
Only 11 leftRegular price $669.99Sale price $669.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG / RCM Alloy Camshaft Sprockets (3 PCS) Kit For NON AVCS 02-05 WRX
Regular price $449.99Sale price $449.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG / RCM Alloy Exhaust Camshaft Sprockets Kit For Single AVCS 04-07 STI, 06-14 WRX, 04-13 FXT, 05-09 LGT
Regular price $299.99Sale price $299.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG / RCM Alloy Cam Sprocket (Left Hand Exhaust) for 02-14 WRX, 04-07 STI, 04-13 FXT, 05-09 LGT
Regular price $169.99Sale price $169.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG / RCM Alloy Cam Sprocket (Right Hand Intake) For 02-05 WRX
Regular price $169.99Sale price $169.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG / RCM Alloy Cam Sprocket (Left Hand Intake) For 2002-05 WRX
Only 11 leftRegular price $219.99Sale price $219.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG / RCM Alloy Cam Sprocket (Right Hand Exhaust) for 02-14 WRX, 04-07 STI, 04-13 FXT, 05-09 LGT
Regular price $169.99Sale price $169.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG / RCM Alloy Cam Sprocket (Left Hand Intake) for V1-4 1992-98 WRX, 1994-98 STI
Only 7 leftRegular price $176.99Sale price $176.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG / RCM Alloy Cam Sprocket (Left Hand Exhaust) for V1-4 1992-98 WRX, 1994-98 STI
Only 5 leftRegular price $176.99Sale price $176.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG / RCM Alloy Cam Sprocket (Right Hand Intake) for V1-4 1992-98 WRX, 1994-98 STI
Only 5 leftRegular price $189.99Sale price $189.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG / RCM Alloy Cam Sprocket (Right Hand Exhaust) for V1-4 1992-98 WRX, 1994-98 STI
Only 7 leftRegular price $176.99Sale price $176.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG 550 Street Cylinder Heads Package for 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT
Regular price From $3,199.99Sale price From $3,199.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG 750 CNC Pocket Ported Competition Cylinder Heads Package for 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT
Regular price From $3,999.99Sale price From $3,999.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG 950 CNC Ported Race Cylinder Heads Package for 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT
Regular price From $4,799.99Sale price From $4,799.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG 1150 CNC Ported Drag Cylinder Heads Package for 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT
Regular price From $5,999.99Sale price From $5,999.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG 800 CNC Pocket Ported Competition Cylinder Heads Package for 2015-21 WRX
Regular price From $4,249.99Sale price From $4,249.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG 600 Street Cylinder Heads Package for 2015-21 WRX
Regular price From $3,199.99Sale price From $3,199.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Long Block Basic Installation Kit for 2015-21 WRX FA20F DIT
Regular price $1,349.99Sale price $1,349.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Timed Long Block Install Kits For Subaru EJ25 Engines
Regular price From $1,349.99Sale price From $1,349.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Timed Long Block Component Packages For Subaru WRX, STI, LGT, FXT
Regular price From $2,999.99Sale price From $2,999.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Long Block Basic Installation Kit for EJ25 WRX, STI, FXT, LGT
Only 14 leftRegular price $2,249.99Sale price $2,249.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Half Moon Valve Cover Cam Seals (4) For 2002-06 Subaru WRX / STI / FXT / LGT (Silver Finish)
Regular price $65.99Sale price $65.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Half Moon Valve Cover Cam Seals (4) For 2002-06 Subaru WRX / STI / FXT / LGT (Black Finish)
Regular price $65.99Sale price $65.99 Regular priceUnit price per -
Vendor:SubaruSubaru Cam Gear Sprocket Bolt Fits 2002-05 WRX Intake Cams & All Non-AVCS Exhaust Cams
Regular price $4.05Sale price $4.05 Regular priceUnit price per -
Vendor:SubaruSubaru Cam Gear Bolt Fits All AVCS Intake & Exhaust Cam Sprockets
Regular price $9.23Sale price $9.23 Regular priceUnit price per -
Vendor:Turn In ConceptsTiC FU Cam Bolt Kit For 2004-07 Subaru STI, 06-14 WRX, 05-09 LGT, 04-13 FXT Single AVCS EJ25
Only 10 leftRegular price $54.00Sale price $54.00 Regular priceUnit price per -
Vendor:Turn In ConceptsTiC FU Cam Bolt Kit For 2008-21 Subaru STI with Dual AVCS EJ25
Regular price $60.00Sale price $60.00 Regular priceUnit price per -
Vendor:Turn In ConceptsTiC FU Cam Bolt Kit For 2002-05 Subaru WRX Non-AVCS EJ20 Engines
Only 16 leftRegular price $48.00Sale price $48.00 Regular priceUnit price per -
Vendor:Brian CrowerBrian Crower ARP2000 Cam Gear Bolt Set (4) Fits 08-21 Subaru STI Dual AVCS
Regular price $152.00Sale price $152.00 Regular priceUnit price per -
Vendor:Brian CrowerBrian Crower ARP2000 Cam Gear Bolt Set (4) Fits 06-14 WRX, 04-07 STI Single AVCS
Regular price $146.00Sale price $146.00 Regular priceUnit price per -
Vendor:Brian CrowerBrian Crower ARP2000 Cam Gear Bolt (Non-AVCS) for Subaru EJ20 & EJ25 (1)
Only 1 leftRegular price $35.00Sale price $35.00 Regular priceUnit price per
Cylinder Heads & Parts
Shop Subaru cylinder heads and valvetrain components at IAG Performance for 2002–2023 Subaru WRX, STI, Legacy GT, Forester XT, and BRZ models. Our selection includes high-quality Subaru cylinder head parts designed for EJ20, EJ25, and FA20 engines, whether you're performing routine maintenance, upgrading valvetrain components, or building a high-performance Subaru engine. Browse a wide range of Subaru cylinder head upgrades and replacement parts including ported head packages, camshafts, cam sprockets, valves, valve springs, retainers, valve guides, gaskets, seals, timing chains, head hardware, and other essential valvetrain components. These parts are engineered to support everything from reliable daily driving to high-horsepower Subaru WRX and STI engine builds. IAG Performance carries cylinder head parts and valvetrain components from many of the most trusted names in the Subaru performance community. Featured brands include AEM, Brian Crower, GSC Power Division, IAG Performance, JE Pro Seal, Kelford Cams, Killer B Motorsport, Manley Performance, Subaru OEM, Turnin Concepts, and more. Whether you're refreshing your Subaru cylinder heads or building a fully upgraded EJ or FA engine, IAG Performance offers the parts and expertise to support your Subaru WRX, STI, Legacy GT, Forester XT, or BRZ build.