500 BHP Quick view IAG Performance IAG Stage 1 2.5L Subaru Short Block For WRX, STI, Legacy GT & Forester XT Availability: Usually Ships in 24 to 72 Hours (5) Compare $3,599.99 IAG Stage 1 Short Block The IAG Stage 1 Short Block is perfect for lightly modified EJ25 Subaru's that need a basic and reliable performance short block. Subaru turbo engines are commonly known for piston ring land failures and if gone unchecked lead to... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
575 BHP Quick view IAG Performance IAG Stage 2 2.5L Subaru Short Block for WRX, STI, Legacy GT, Forester XT Availability: Usually Ships in 24 to 72 Hours (3) Compare $3,799.99 STAGE 2 EJ25 2.5L SHORT BLOCK window.SHOGUN_IMAGE_ELEMENTS = window.SHOGUN_IMAGE_ELEMENTS || new Array(); window... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
600 BHP Quick view IAG Performance IAG Stage 2 Tuff 2.5L Subaru Short Block for WRX, STI, LGT, FXT Availability: Usually Ships in 24 to 72 Hours (4) Compare $4,199.99 IAG Stage 2 Tuff Short Block The IAG Stage 2 Tuff short block starts with new Subaru 2.5L EJ25 engine case halves that are bored and honed to 99.75 on our in-house Sunnen SV-30 the most advanced automotive cylinder hone available. IAG's in-house honing... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
700 BHP Quick view IAG Performance IAG Stage 2.5 International Hybrid EJ25 Subaru Closed Deck Short Block (For Use w/ EJ20 Heads) Availability: Usually Ships in 2 to 3 Weeks (4) Compare $4,899.99 IAG Stage 2.5 International Hybrid Subaru EJ25 Closed Deck Short Block The Hybrid EJ25 Short Block is designed for enthusiasts that want to increase the displacement and low end torque of their vehicle that originally was equipped with the EJ20 2.0L... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
700 BHP Quick view IAG Performance IAG Stage 2.5 EJ20 Subaru Closed Deck Short Block For 2002-05 WRX Availability: Usually Ships in 2 to 3 Weeks (4) Compare $4,799.99 STAGE 2.5 EJ20 2.0L SHORT BLOCK window.SHOGUN_IMAGE_ELEMENTS = window... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
700 BHP Quick view IAG Performance IAG Stage 2.5 EJ25 Subaru Closed Deck Short Block For WRX, STI, LGT, FXT Availability: Usually Ships in 24 to 72 Hours (5) Compare $4,799.99 STAGE 2.5 EJ25 2.5L SHORT BLOCK window.SHOGUN_IMAGE_ELEMENTS = window.SHOGUN_IMAGE_ELEMENTS... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
900 BHP Quick view IAG Performance IAG Magnum EJ20 Subaru Closed Deck Short Block For 2002-05 WRX Availability: Usually Ships in 1 to 2 Weeks Compare $5,999.99 IAG Magnum Subaru EJ20 Closed Deck Short Block The IAG Magnum EJ20 Short Block starts with brand new Subaru 2.0L engine case halves. IAG machines the case halves assembled together in our Haas VF-4SS CNC mill to accept the IAG CLOSED Deck Inserts that... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
900 BHP Quick view IAG Performance IAG Magnum EJ25 Subaru Closed Deck Short Block For WRX, STI, LGT, FXT Availability: Usually Ships in 1 to 2 Weeks Compare $5,999.99 IAG Magnum Subaru EJ25 Closed Deck Short Block The IAG Magnum Short Block starts with brand new Subaru 2.5L engine case halves. IAG machines the case halves assembled together in our Haas VF-4SS CNC mill to accept the IAG CLOSED Deck Inserts that... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
1000 BHP Quick view IAG Performance IAG Stage 4 Tuff EJ20 Subaru Closed Deck Short Block For 2002-05 WRX Availability: Usually Ships in 2 to 3 Weeks Compare $6,599.99 IAG Stage 4 Tuff Subaru EJ20 Closed Deck Short Block The IAG Stage 4 Tuff Short Block starts with brand new Subaru 2.0L engine case halves. IAG machines the case halves assembled together in our Haas VF-4SS CNC mill to accept the IAG CLOSED Deck Inserts... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
1000 BHP Quick view IAG Performance IAG Stage 4 Tuff EJ25 Subaru Closed Deck Short Block For WRX, STI, LGT, FXT Availability: Usually Ships in 3 to 4 Weeks Compare $6,599.99 IAG Stage 4 Tuff Subaru EJ25 Closed Deck Short Block The IAG Stage 4 Tuff Short Block starts with brand new Subaru 2.5L engine case halves. IAG machines the case halves assembled together in our Haas VF-4SS CNC mill to accept the IAG CLOSED Deck Inserts... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
1100 BHP Quick view IAG Performance IAG Stage 4 Extreme 2.5L Subaru Closed Deck Short Block For WRX, STI, LGT, FXT Availability: Usually Ships in 6 to 8 Weeks Compare $8,799.99 IAG Stage 4 Extreme Closed Deck EJ25 Subaru Short BlockThe IAG Stage 4 Extreme Short Block starts with brand new Subaru 2.5L EJ25 engine case halves. The case halves are split and the main webs are CNC machined in our Haas VF-4SS CNC mill for 9.5mm pins... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
1100+ BHP Quick view IAG Performance IAG Performance / Crest CNC Stage X 2.5L Subaru Billet Aluminum Short Block For WRX, STI, LGT, FXT Availability: Usually Ships in 4 to 6 Months Compare $17,599.99 IAG / Crest CNC Stage X Billet Aluminum EJ25 Subaru Short Block The CNC Billet Aluminum EJ case seeks to change the Subaru performance tuning market by reinventing the EJ and addressing virtually every weakness that exists in max-power builds. Each IAG /... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
550 BHP Quick view IAG Performance IAG Stage 1 FA20 DIT Subaru Short Block for 2015-21 WRX Availability: Usually Ships in 1 to 2 Weeks (1) Compare $4,199.99 IAG Stage 1 FA20 DIT Short Block The IAG Stage 1 short block starts with new Subaru FA 2.0L engine case halves that are machined for improved oiling. Then the case is bored and honed to 86.1mm on our in-house Sunnen SV-30 the most advanced automotive... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
550 BHP Quick view IAG Performance IAG Stage 1 FA20 Subaru Short Block for 2013-20 BRZ / FR-S / GT86 (10.5:1 Compression Ratio) Availability: Usually Ships in 1 to 2 Weeks Compare $4,199.99 IAG Stage 1 FA20 Short Block The IAG Stage 1 short block starts with new Subaru FA 2.0L BRZ engine case halves that are machined for improved oiling. Then the case is bored and honed to 86.1mm on our in-house Sunnen SV-30 the most advanced automotive... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
550 BHP Quick view IAG Performance IAG Stage 1 FA20 Subaru Short Block for 2013-20 BRZ / FR-S / GT86 (12.5:1 Compression Ratio) Availability: Usually Ships in 1 to 2 Weeks Compare $4,199.99 IAG Stage 1 FA20 Short Block The IAG Stage 1 short block starts with new Subaru FA 2.0L BRZ engine case halves that are machined for improved oiling. Then the case is bored and honed to 86.25mm on our in-house Sunnen SV-30 the most advanced automotive... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
600 BHP Quick view IAG Performance IAG Stage 2 FA20 DIT Subaru Short Block for 2015-21 WRX Availability: Usually Ships in to 1 to 2 Weeks (1) Compare $4,399.99 IAG Stage 2 FA20 DIT Short Block The IAG Stage 2 short block starts with new Subaru FA 2.0L engine case halves that are machined for improved oiling. Then the case is bored and honed to 86.1mm on our in-house Sunnen SV-30 the most advanced automotive... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
600 BHP Quick view IAG Performance IAG Stage 2 FA20 Subaru Short Block for 2013-20 BRZ / FR-S / GT86 (10.5:1 Compression Ratio) Availability: Usually Ships in 1 to 2 Weeks Compare $4,399.99 IAG Stage 2 FA20 Short Block The IAG Stage 2 short block starts with new Subaru FA 2.0L BRZ engine case halves that are machined for improved oiling. Then the case is bored and honed to 86.1mm on our in-house Sunnen SV-30 the most advanced automotive... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
600 BHP Quick view IAG Performance IAG Stage 2 FA20 Short Block For 2013-20 BRZ / FR-S (Standard Compression 12.5:1) Availability: Usually Ships in 1 to 2 Weeks Compare $4,399.99 IAG Stage 2 FA20 Short Block The IAG Stage 2 short block starts with new Subaru FA 2.0L BRZ engine case halves that are machined for improved oiling. Then the case is bored and honed to 86.25mm on our in-house Sunnen SV-30 the most advanced automotive... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
675 BHP Quick view IAG Performance IAG Stage 2.5 FA20 DIT Subaru Closed Deck Short Block for 2015-21 WRX Availability: Usually Ships in 2 to 4 Weeks Compare $5,699.99 IAG Stage 2.5 FA20 DIT Closed Deck Short Block The IAG Stage 2.5 short block starts with new Subaru FA 2.0L engine case halves that are machined for improved oiling. Then IAG machines the case halves assembled together in our Haas VF-4SS CNC mill to... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
675 BHP Quick view IAG Performance IAG Stage 2.5 FA20 Subaru Closed Deck Short Block for 2013-20 BRZ / FR-S / GT86 (10.5:1 Compression Ratio) Availability: Usually Ships in 1 to 2 Weeks Compare $5,699.99 IAG Stage 2.5 FA20 Closed Deck Short Block The IAG Stage 2.5 short block starts with new Subaru FA 2.0L BRZ engine case halves that are machined for improved oiling. Then IAG machines the case halves assembled together in our Haas VF-4SS CNC mill to... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
675 BHP Quick view IAG Performance IAG Stage 2.5 FA20 Subaru Closed Deck Short Block for 2013-20 BRZ / FR-S / GT86 (Standard Compression 12.5:1) Availability: Usually Ships in 1 to 2 Weeks Compare $5,699.99 IAG Stage 2.5 FA20 Closed Deck Short Block The IAG Stage 2.5 short block starts with new Subaru FA 2.0L BRZ engine case halves that are machined for improved oiling. Then IAG machines the case halves assembled together in our Haas VF-4SS CNC mill to... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
800 BHP Quick view IAG Performance IAG Stage 3 Extreme FA20 DIT Subaru Closed Deck Short Block for 2015-21 WRX Availability: Usually Ships in 16+ Weeks (1) Compare $5,999.99 IAG Stage 3 Extreme FA20 DIT Closed Deck Short Block The IAG Stage 3 Extreme short block starts with new Subaru FA 2.0L engine case halves that are machined for improved oiling. Then IAG machines the case halves assembled together in our Haas VF-4SS CNC... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
800 BHP Quick view IAG Performance IAG Stage 3 Extreme FA20 Subaru Closed Deck Short Block for 2013-20 BRZ / FR-S / GT86 (10.5:1 Compression Ratio) Availability: Usually Ships in 16+ Weeks Compare $5,999.99 IAG Stage 3 Extreme FA20 Closed Deck Short Block The IAG Stage 3 Extreme short block starts with new Subaru FA 2.0L BRZ engine case halves that are machined for improved oiling. Then IAG machines the case halves assembled together in our Haas VF-4SS CNC... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
800 BHP Quick view IAG Performance IAG Stage 3 Extreme FA20 Subaru Closed Deck Short Block for 2013-20 BRZ / FR-S / GT86 (12.5:1 Compression Ratio) Availability: Usually Ships in 16+ Weeks Compare $5,999.99 IAG Stage 3 Extreme FA20 Closed Deck Short Block The IAG Stage 3 Extreme short block starts with new Subaru FA 2.0L BRZ engine case halves that are machined for improved oiling. Then IAG machines the case halves assembled together in our Haas VF-4SS CNC... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG 500 Long Block Engine w/ Stage 1 Heads for 06-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT Availability: Usually Ships in 5 to 6 Weeks Compare $9,349.99 IAG 500 EJ25 Long Block Engine with Stage 1 Heads: The IAG Performance Hand-Built 500 Subaru EJ25 Long Block Packages are a complete, valve cover to valve cover, crate engine. These engines offer significant ease of installation for customers seeking a... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG 600 Long Block Engine w/ Stage 2 Heads for 06-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT Availability: Usually Ships in 5 to 6 Weeks Compare $10,449.99 IAG 600 EJ25 Long Block Engine w/ Stage 2 Heads: The IAG Performance Hand-Built Subaru EJ25 Long Block Engine Packages are a complete, valve cover to valve cover, crate engine. These engines offer significant ease of installation for customers seeking a... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG 700 Closed Deck Long Block Engine w/ Stage 3 Heads for 06-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT Availability: Usually Ships in 5 to 6 Weeks Compare $11,549.99 IAG 700 EJ25 Closed Deck Long Block w/ Stage 3 Heads: The IAG Performance Hand-Built Subaru EJ25 Closed Deck Long Block Engine Packages are a complete, valve cover to valve cover, crate engine. These engines offer significant ease of installation for... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG 900 Closed Deck Long Block Engine w/ Stage 4 Heads for 06-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT Availability: Usually Ships in 5 to 6 Weeks (1) Compare $12,749.99 IAG 900 EJ25 Closed Deck Long Block w/ Stage 4 Heads: The IAG Performance Hand-Built Subaru EJ25 Closed Deck Long Block Engine Packages are a complete, valve cover to valve cover, crate engine. These engines offer significant ease of installation for... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG 1000+ Closed Deck Long Block Engine w/ Stage 5 Heads for 06-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT Availability: Usually Ships in 5 to 6 Weeks Compare $17,449.99 IAG 1000+ EJ25 Closed Deck Long Block w/ Stage 5 Heads: The IAG Performance Hand-Built Subaru EJ25 Closed Deck Long Block Engine Packages are a complete, valve cover to valve cover, crate engine. These engines offer significant ease of installation for... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
Quick view IAG Performance IAG 600 FA20 DIT Long Block Engine for 2015-21 WRX Availability: Usually Ships 5 to 6 Weeks Compare $13,999.99 IAG 600 FA20F DIT TIMED LONG BLOCK FOR 2015-2021 WRX window.SHOGUN_IMAGE_ELEMENTS = window... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List
