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550 BHPVendor:IAG PerformanceIAG 550 2.5L Subaru Short Block for WRX, STI, Legacy GT, Forester XT - 550 BHP
Regular price $4,499.99Sale price $4,499.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Timing Belt Kit with IAG Red Racing Belt, Timing Guide, Idlers & Tensioner for 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT
Regular price $599.99Sale price $599.99 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 Wrist Pin / Cover Seal Kit for Subaru EJ25 Short Blocks
Regular price $149.99Sale price $149.99 Regular priceUnit price per -
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
Only 15 leftRegular price $329.99Sale price $329.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Performance Adjustable Timing Idler Kit for EJ20/EJ25 Subaru WRX, STI, LGT, FXT
Only 9 leftRegular price $199.99Sale price $199.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Performance / ARP 14mm Head Stud Set For Subaru WRX, STI, Legacy GT, Forester XT
Regular price $599.99Sale price $599.99 Regular priceUnit price per -
750 BHPVendor:IAG PerformanceIAG 750 EJ25 Subaru Closed Deck Short Block For WRX, STI, LGT, FXT - 750BHP
Regular price From $5,499.99Sale price From $5,499.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Red Racing Timing Belt for 2002-14 Subaru WRX, 04-21 STI, 04-13 FXT, 05-12 LGT
Regular price $229.99Sale price $229.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG V2 Timing Belt Guide for 2002-14 Subaru WRX, 04-21 STI, 05-09 LGT & 04-08 FXT (Black Finish)
Regular price $59.99Sale price $59.99 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 -
600 BHPVendor:IAG PerformanceIAG 600 FA20 DIT Subaru Short Block for 2015-21 WRX - 600 BHP
Regular price $5,249.99Sale price $5,249.99 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 105K Service Package w/ AISIN Water Pump Fits 2008-21 Subaru STI
Regular price $769.99Sale price $769.99 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:IAG PerformanceIAG Performance 14mm Head Stud Dowel (Sold Individually)
Only 4 leftRegular price $14.99Sale price $14.99 Regular priceUnit price per -
950 BHPVendor:IAG PerformanceIAG 950 Closed Deck Long Block Engine w/ IAG 950 Heads for 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT
Regular price From $13,999.99Sale price From $13,999.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Timing Belt Kit with IAG Red Racing Belt, Timing Guide, Adjustable Idlers & Tensioner for 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT
Only 5 leftRegular price $699.99Sale price $699.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Timing Belt Kit with IAG Black Racing Belt, Timing Guide, Idlers & Tensioner for 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT
Regular price $599.99Sale price $599.99 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 Short Block Plug & Rear Main Seal Kit for Subaru 2015-21 WRX FA20 DIT
Regular price $59.99Sale price $59.99 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 Timing Belt Kit with IAG Black Racing Belt, Timing Guide, Adjustable Idlers & Tensioner for 02-14 WRX, 04-21 STI
Only 7 leftRegular price $699.99Sale price $699.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Short Block Copper O-Ring Wire & Install Tool Kit
Only 6 leftRegular price $39.99Sale price $39.99 Regular priceUnit price per -
550 BHPVendor:IAG PerformanceIAG 550 Long Block Engine w/ IAG 550 Heads for 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT
Regular price From $10,499.99Sale price From $10,499.99 Regular priceUnit price per -
750 BHPVendor:IAG PerformanceIAG 750 Closed Deck Long Block Engine w/ IAG 750 Heads for 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT
Regular price From $12,749.99Sale price From $12,749.99 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 18 leftRegular price $229.99Sale price $229.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG / RCM Alloy Camshaft Sprockets (4 PCS) Kit For NON AVCS 02-05 WRX
Only 8 leftRegular price $669.99Sale price $669.99 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 Fire-Lock 2.4L FA24 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 Black AVCS Camshaft Sensor Plugs (Pair) For 2002-05 Subaru WRX w/ USDM AVCS Heads
Regular price $69.99Sale price $69.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG / RCM Alloy Cam Sprocket (Left Hand Intake) For 2002-05 WRX
Only 8 leftRegular price $219.99Sale price $219.99 Regular priceUnit price per -
Vendor:IAG PerformanceIAG Single Valve Spring and Titanium Retainer Set For Subaru EJ Engine
Only 12 leftRegular price $329.99Sale price $329.99 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 750 EJ25 Closed Deck Case - 11mm H.S.M. - For Subaru WRX, STI, FXT & LGT
Regular price From $2,749.99Sale price From $2,749.99 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 9 leftRegular price $329.99Sale price $329.99 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.