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Vendor:IAG PerformanceIAG Replacement ARP 14mm Head Stud Washer (1)
Regular price $9.99Sale price $9.99 Regular priceUnit price per -
600 BHPVendor:IAG PerformanceIAG 600 FA20 Subaru Short Block for 2013-20 BRZ / FR-S / GT86 (10.5:1 Compression Ratio) - 600 BHP
Regular price $5,249.99Sale price $5,249.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Black Racing Timing Belt for 2002-14 Subaru WRX, 04-21 STI, 04-13 FXT, 05-12 LGT
Only 19 leftRegular price $229.99Sale price $229.99 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 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 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 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 -
950 BHPVendor:IAG PerformanceIAG 950 EJ25 Subaru Closed Deck Short Block For WRX, STI, LGT, FXT - 950 BHP
Regular price $6,499.99Sale price $6,499.99 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 105K Service Package w/ AISIN Water Pump Fits 2008-14 Subaru WRX
Regular price $769.99Sale price $769.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG 1150 EJ25 Closed Deck Case - 14mm H.S.M., Fire-Lock, Pinned + Line Honed, ARP Case Bolts- For Subaru WRX, STI, LGT, FXT
Regular price From $4,449.99Sale price From $4,449.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Timing Guide, Comp Tensioner & Red Racing Timing Belt Kit for 02-14 WRX, 04-21 STI, 04-13 FXT, 05-12 LGT
Regular price $899.99Sale price $899.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Timing Guide, Comp Tensioner & Black Racing Timing Belt Kit for 02-14 WRX, 04-21 STI, 04-13 FXT, 05-12 LGT
Only 19 leftRegular price $899.99Sale price $899.99 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 Performance V2 Competition Series EJ Timing Belt Tensioner
Regular price $589.99Sale price $589.99 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 -
600 BHPVendor:IAG PerformanceIAG 600 FA20 DIT Long Block Engine w/ IAG 600 Heads for 2015-21 Subaru WRX
Regular price $16,499.99Sale price $16,499.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG 105K Service Package w/ AISIN Water Pump Fits 2005-09 Subaru Legacy GT
Regular price $769.99Sale price $769.99 Regular priceUnit price per -
800 BHPVendor:IAG PerformanceIAG 800 FA20 Subaru Closed Deck Short Block for 2013-20 BRZ / FR-S / GT86 (10.5:1 Compression Ratio) - 800 BHP
Regular price $6,499.99Sale price $6,499.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Replacement ARP 1/2" Head Stud (1)
Only 13 leftRegular price $59.99Sale price $59.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG 950 EJ25 Closed Deck Case - 14mm H.S.M., Fire-Lock - For Subaru WRX, STI, LGT, FXT
Regular price From $3,099.99Sale price From $3,099.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Threaded Plugs for FA Cylinder Heads (Set of 8)
Regular price $129.99Sale price $129.99 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 Replacement ARP 1/2" Head Stud Nut (1)
Regular price $9.99Sale price $9.99 Regular priceUnit price per -
800 BHPVendor:IAG PerformanceIAG 800 FA20 DIT Subaru Closed Deck Short Block for 2015-21 WRX - 800 BHP
Regular price $6,499.99Sale price $6,499.99 Regular priceUnit price per -
1150 BHPVendor:IAG PerformanceIAG 1150 Destroked 2.35L Subaru Closed Deck Short Block For WRX, STI, LGT, FXT - 1150 BHP
Regular price $10,499.99Sale price $10,499.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG 105K Service Package w/ AISIN Water Pump Fits 2004-07 Subaru STI
Regular price $769.99Sale price $769.99 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 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 / 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 -
950 BHPVendor:IAG PerformanceIAG 950 2.35L Destroked Long Block Engine w/ IAG 950 Heads for 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT
Regular price From $14,599.99Sale price From $14,599.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Replacement ARP 14mm Head Stud Nut (1)
Regular price $14.99Sale price $14.99 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 -
Sold OutVendor:IAG PerformanceIAG Performance - Crest CNC Stage X 2.5L Subaru Billet Aluminum Short Block For WRX, STI, LGT, FXT
Regular price $17,999.99Sale price $17,999.99 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 (Right Hand Intake) For 02-05 WRX
Regular price $169.99Sale price $169.99 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.