Optimize your Subaru STI 2004-2007 engine's performance with a comprehensive range of top-quality aftermarket parts from industry-leading brands. Elevate the power and efficiency of your vehicle with ETS, HKS, Perrin, Mishimoto, AMS, Grimmspeed, Cobb, Remark, PLM, Turbosmart, IAG Performance, and more. Enhance airflow and filtration through AIR INTAKE DUCTS and COLD AIR INTAKES, while maintaining engine cleanliness with AIR OIL SEPARATORS and CATCH CANS. Experience impeccable control and responsiveness with BLOW OFF VALVES and BOOST CONTROL SOLENOID COVERS, complemented by the reliability of ENGINE MOUNTS and meticulously crafted ENGINE MANAGEMENT HARNESSES. Simplify maintenance and improve overall performance with DIPSTICKS and explore comprehensive ENGINE PACKAGE DEALS for a holistic approach to upgrading your Subaru WRX's engine. Unleash the full potential of your vehicle through precision-engineered components designed to deliver both power and durability, all meticulously designed to give your Subaru STI the edge on the road or track.
Subaru STI 2004-2007 Engine Parts
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Up to $158 off
In StockTomei 02-07 WRX / 04-21 STI ARMS MX7760 Turbo | TB401A-SB01A
Only 3 leftRegular price $1,422.00Sale price $1,422.00 Regular priceUnit price per$1,580.00 -
Process West 02-14 WRX / 04-21 STI Engine Pulley Garnish Red | PWED02R
Regular price $78.65Sale price $78.65 Regular priceUnit price per$78.65 -
Process West 02-14 WRX / 07-21 STI Billet Fuel Rails Black | PRW-PWFR01B
Regular price $366.48Sale price $366.48 Regular priceUnit price per$366.48 -
Process West 02-14 WRX / 07-21 STI Fuel Rails | PWFR01
Regular price $342.00Sale price $342.00 Regular priceUnit price per$342.00 -
Aeromotive 02-14 WRX / 07-21 STI Billet Fuel Rails Red | 14134
Regular price $300.31Sale price $300.31 Regular priceUnit price per$300.31 -
Up to $7.99 off
In StockTorque Solution 02-14 WRX / 04-21 STI / 05-12 LGT / 04-13 FXT Billet Timing Belt Guide | TS-SU-010
Only 5 leftRegular price $52.00Sale price $52.00 Regular priceUnit price per$59.99 -
![Torque Solution [02-07 WRX, 04-21 STI, 04-08 FXT] Turbo Inlet Hose - Red | TS-SU-463RD](//jdmuscleusa.com/cdn/shop/products/torque-solution-turbo-inlet-hose-red-02-07-subaru-wrx-04-19-sti-05-09-legacy-gt-04-13-ftx-turbo-inlet-hoses-and-pipes-torque-solution-tqsts-su-463rd.jpg?v=1614519038&width=220)
![Torque Solution [02-07 WRX, 04-21 STI, 04-08 FXT] Turbo Inlet Hose - Red | TS-SU-463RD](//jdmuscleusa.com/cdn/shop/files/torque-solution-turbo-inlet-hose-red-2002-2007-wrx-2004-2021-sti-2004-2008-forester-xt-ts-su-463rd-888855_557x375_55de504c-abb3-4765-8a6d-acff69a7991c.jpg?v=1689965451&width=220)
Up to $60.77 off
In StockTorque Solution Turbo Inlet Hose - Red | TS-SU-463RD
Fits: 02-07 WRX, 04-21 STI, 04-08 FXT
Only 3 leftRegular price $217.00Sale price $217.00 Regular priceUnit price per$277.77 -
Up to $8.10 off
In StockTorque Solution 02-14 WRX / 04-21 STI 2.5i Fuel Rail Adapters | TS-SU-308
Only 1 leftRegular price $53.00Sale price $53.00 Regular priceUnit price per$61.10 -
IAG Performance Street Series Oil Pan Black
Fits: 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT
Regular price $569.99Sale price $569.99 Regular priceUnit price per$569.99 -
Subaru OEM Front Crossover Gasket EJ20 / EJ25 | 44022AA160
Regular price $20.02Sale price $20.02 Regular priceUnit price per$20.02 -
IAG Black Racing Timing Belt
Fits: 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT
Regular price $229.99Sale price $229.99 Regular priceUnit price per$229.99 -
![IAG Performance [02 - 14 WRX, 04 - 21 STI , 05 - 12 LGT ,04 - 13 FXT] 3mm Thick Phenolic Spacers | IAG - AFD - 3103 - JDMusclePhenolic Thermal Intake Manifold SpacersIAG-AFD-3103](//jdmuscleusa.com/cdn/shop/files/iag-performance-02-14-wrx-04-21-sti-05-12-lgt-04-13-fxt-3mm-thick-phenolic-spacers-iag-afd-3103-7120303.jpg?v=1770327865&width=220)
IAG 3mm Thick Phenolic Spacers
Fits: 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT
Regular price $69.99Sale price $69.99 Regular priceUnit price per$69.99 -
IAG Performance V3 Top Feed Fuel Rails Red
Fits: 02-14 WRX, 07-21 STI, 08-12 LGT, 06-13 FXT
Regular price $219.99Sale price $219.99 Regular priceUnit price per$219.99 -
IAG Performance V3 Top Feed Fuel Rails Gold
Fits: 02-14 WRX, 07-21 STI, 08-12 LGT, 06-13 FXT
Regular price $219.99Sale price $219.99 Regular priceUnit price per$219.99 -
Kartboy 02-14 WRX / 04-21 STI / 05-09 Legacy / 03-13 Forester Aluminum Crank Pulley V2 | KB-050-EJ-V2
Regular price $100.00Sale price $100.00 Regular priceUnit price per$100.00 -
IAG Black Timing Belt Kit w/ OEM Tensioner / Idlers and IAG Guide
Fits: 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT
Regular price $599.99Sale price $599.99 Regular priceUnit price per$599.99
![Torque Solution [02-07 WRX, 04-21 STI, 04-08 FXT] Turbo Inlet Hose - Red | TS-SU-463RD](http://jdmuscleusa.com/cdn/shop/products/torque-solution-turbo-inlet-hose-red-02-07-subaru-wrx-04-19-sti-05-09-legacy-gt-04-13-ftx-turbo-inlet-hoses-and-pipes-torque-solution-tqsts-su-463rd.jpg?v=1614519038&width=220)
![Torque Solution [02-07 WRX, 04-21 STI, 04-08 FXT] Turbo Inlet Hose - Red | TS-SU-463RD](http://jdmuscleusa.com/cdn/shop/files/torque-solution-turbo-inlet-hose-red-2002-2007-wrx-2004-2021-sti-2004-2008-forester-xt-ts-su-463rd-888855_557x375_55de504c-abb3-4765-8a6d-acff69a7991c.jpg?v=1689965451&width=220)
![IAG Performance [02 - 14 WRX, 04 - 21 STI , 05 - 12 LGT ,04 - 13 FXT] 3mm Thick Phenolic Spacers | IAG - AFD - 3103 - JDMusclePhenolic Thermal Intake Manifold SpacersIAG-AFD-3103](http://jdmuscleusa.com/cdn/shop/files/iag-performance-02-14-wrx-04-21-sti-05-12-lgt-04-13-fxt-3mm-thick-phenolic-spacers-iag-afd-3103-7120303.jpg?v=1770327865&width=220)
