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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 105K Service Package w/ AISIN Water Pump Fits 2003-05 Subaru WRX
Regular price $749.99Sale price $749.99 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 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 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 / 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 800 FA20 DIT Closed Deck Case Half Set for 2015-21 Subaru WRX
Regular price From $3,099.99Sale price From $3,099.99 Regular priceUnit price per -
1000 BHPVendor:IAG PerformanceIAG 1000 FA20 DIT Subaru Closed Deck Short Block for 2015-21 WRX - 1000 BHP
Only 5 leftRegular price $6,999.99Sale price $6,999.99 Regular priceUnit price per -
1150 BHPVendor:IAG PerformanceIAG 1150 2.35L Destroked Long Block Engine w/ IAG 1150 Heads for 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT
Regular price From $19,249.99Sale price From $19,249.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG 105K Service Package w/ AISIN Water Pump Fits 2006-07 Subaru WRX
Regular price $769.99Sale price $769.99 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 EJ25 WRX, STI, FXT, LGT
Only 14 leftRegular price $2,249.99Sale price $2,249.99 Regular priceUnit price per -
800 BHPVendor:IAG PerformanceIAG 800 FA20 DIT Closed Deck Long Block Engine w/ IAG 800 Heads for 2015-21 Subaru WRX
Regular price $18,999.99Sale price $18,999.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Replacement ARP 14mm Head Stud (1)
Only 15 leftRegular price $59.99Sale price $59.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG 800 FA20 Closed Deck Case Half Set for 13-20 Subaru BRZ, 13-16 FR-S, 17-20 86
Regular price From $3,099.99Sale price From $3,099.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG 105K Service Package w/ AISIN Water Pump Fits 2002 Subaru WRX
Regular price $749.99Sale price $749.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Replacement ARP 1/2" Head Stud Washer (1)
Regular price $9.99Sale price $9.99 Regular priceUnit price per -
800 BHPVendor:IAG PerformanceIAG 800 FA20 Subaru Closed Deck Short Block for 2013-20 BRZ / FR-S / GT86 (12.5:1 Compression Ratio) - 800 BHP
Regular price $6,499.99Sale price $6,499.99 Regular priceUnit price per -
1150 BHPVendor:IAG PerformanceIAG 1150 2.5L Subaru Closed Deck Short Block For WRX, STI, LGT, FXT - 1150 BHP
Regular price $9,499.99Sale price $9,499.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads for 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT
Regular price From $18,749.99Sale price From $18,749.99 Regular priceUnit price per -
950 BHPVendor:IAG PerformanceIAG 950 EJ25 Destroked 2.35L Closed Deck Short Block For WRX, STI, LGT, FXT - 950BHP
Regular price $6,999.99Sale price $6,999.99 Regular priceUnit price per -
1150 BHPVendor:IAG PerformanceIAG 1150 High Compression 2.5L Subaru Closed Deck Short Block For WRX, STI, LGT, FXT - 1150 BHP
Only 3 leftRegular price $9,499.99Sale price $9,499.99 Regular priceUnit price per -
Sold OutVendor:IAG PerformanceIAG / Crest CNC Billet Aluminum EJ25 Subaru Case Halves For WRX, STI, Forester XT & Legacy GT
Regular price $11,789.99Sale price $11,789.99 Regular priceUnit price per
Engine Builds
Shop Subaru engine build parts from IAG Performance, including built long blocks, short blocks, cylinder heads, and internal engine components. Our lineup supports Subaru WRX, STI, BRZ, Legacy GT, and Forester XT models with EJ20, EJ25, and FA20 engines, whether you're planning a stock rebuild, upgrading to an STI short block, or building a high-performance Subaru WRX engine.