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 $33.05 offMishimoto 01-07 WRX/STI PNP Aluminum Fan Shroud Gold | MMFS-WRX-01PGD
Regular price $334.95Sale price $334.95 Regular priceUnit price per$368.00 -
Up to $25 offBLOX Racing 04 - 18 STI Mega Flow EJ25 Oil Pick-Up Tube | BXPT-50515
Regular price $100.00Sale price $100.00 Regular priceUnit price per$125.00 -
![HKS [02 - 07 WRX, 04 - 07 STI] Super Hybrid Panel Air Filter | 70017 - AN101 - JDMuscleHigh Flow Replacement Panel FiltersHKS70017-AN101](//jdmuscleusa.com/cdn/shop/products/hks-02-07-wrx-04-07-sti-super-hybrid-panel-air-filter-70017-an101-7361224.jpg?v=1770329133&width=220)
![HKS [02-07 WRX, 04-07 STI] Super Hybrid Panel Air Filter | 70017-AN101](//jdmuscleusa.com/cdn/shop/products/42993.gif?v=1676995508&width=220)
In StockHKS Super Hybrid Panel Air Filter | 70017-AN101
Fits: 02-07 WRX, 04-07 STI
Regular price $43.00Sale price $43.00 Regular priceUnit price per$43.00 -
Up to $10.21 off
In StockTorque Solution -12an Breather Oil Cap | Black: Subaru Engines | TS-SU-313-12
Only 1 leftRegular price $62.00Sale price $62.00 Regular priceUnit price per$72.21 -
Mishimoto Black Top Mount Intercooler w/ Black Hoses WRX 2002-2007 / STI 2004-2007 | WRX-01BKBK
Regular price $1,011.00Sale price $1,011.00 Regular priceUnit price per$1,011.00 -
Mishimoto Silver Top Mount Intercooler w/ Black Hoses WRX 2002-2007 / STI 2004-2007 | MMTMIC-WRX-01SLBK
Regular price $1,011.00Sale price $1,011.00 Regular priceUnit price per$1,011.00 -
Up to $5.20 offBLOX Racing 02-07 WRX/04-19 STI - Black Intercooler Coupler Hose Kit | BXFL-50215-BK
Regular price $20.80Sale price $20.80 Regular priceUnit price per$26.00 -
Up to $5 offBLOX Racing 02-07 WRX/04-19 STI - Blue Intercooler Coupler Hose Kit | BXFL-50215-BL
Regular price $20.00Sale price $20.00 Regular priceUnit price per$25.00 -
Up to $5.20 offBLOX Racing 02-07 WRX/04-19 STI - Red Intercooler Coupler Hose Kit | BXFL-50215-RD
Regular price $20.80Sale price $20.80 Regular priceUnit price per$26.00 -
![Cobb [04 - 07 STI] Stage 2+ Power Package w/V3 - JDMuscleEngine Package Dealscobb613X12P](//jdmuscleusa.com/cdn/shop/products/cobb-04-07-sti-stage-2-power-package-wv3-6696612.jpg?v=1770330623&width=220)
![Cobb [04 - 07 STI] Stage 2+ Power Package w/V3 - JDMuscleEngine Package Dealscobb613X12P](//jdmuscleusa.com/cdn/shop/products/cobb-04-07-sti-stage-2-power-package-wv3-9696565.jpg?v=1770330624&width=220)
Cobb Stage 2+ Power Package w/V3
Fits: 04-07 STI
Regular price $2,895.00Sale price $2,895.00 Regular priceUnit price per$2,895.00 -
GSC Power-Division 02-14 WRX / 04-21 STI Super Alloy Exhaust Valves 32mm | 15-8
Regular price $266.00Sale price $266.00 Regular priceUnit price per$266.00 -
![Torque Solution [02 - 07 WRX / STi] Small Battery Tie Down - Red | TS - SU - 613R - JDMuscleBattery Tie Downs and TraystqsTS-SU-613R](//jdmuscleusa.com/cdn/shop/products/torque-solution-02-07-wrx-sti-small-battery-tie-down-red-ts-su-613r-9249659.jpg?v=1770329843&width=220)
Up to $4.99 offTorque Solution Small Battery Tie Down - Red | TS-SU-613R
Fits: 02-07 WRX / STi
Regular price $45.00Sale price $45.00 Regular priceUnit price per$49.99 -
Up to $8.71 offCometic Complete Gasket Kit Subaru STI 2004-2006 | PRO2024C
Regular price $321.00Sale price $321.00 Regular priceUnit price per$329.71 -
Killer B Motorsport 02-14 WRX / 04-21 STI 4-1 Holy Header Exhaust Manifold w/ V Band Up-Pipe | HH4-1
Regular price $2,175.00Sale price $2,175.00 Regular priceUnit price per$2,175.00 -
ETS Top Mount Intercooler Upgrade - Silver Core - Stencil Subaru STI 04-07 | 200-10-IC-043
Regular price $695.00Sale price $695.00 Regular priceUnit price per$695.00 -
In StockHKS 06-14 WRX / 04-21 STI / 05-09 LGT Stainless Steel Unequal Length Exhaust Manifold | 1419-RF001
Only 13 leftRegular price $1,470.00Sale price $1,470.00 Regular priceUnit price per$1,470.00
![HKS [02 - 07 WRX, 04 - 07 STI] Super Hybrid Panel Air Filter | 70017 - AN101 - JDMuscleHigh Flow Replacement Panel FiltersHKS70017-AN101](http://jdmuscleusa.com/cdn/shop/products/hks-02-07-wrx-04-07-sti-super-hybrid-panel-air-filter-70017-an101-7361224.jpg?v=1770329133&width=220)
![HKS [02-07 WRX, 04-07 STI] Super Hybrid Panel Air Filter | 70017-AN101](http://jdmuscleusa.com/cdn/shop/products/42993.gif?v=1676995508&width=220)
![Cobb [04 - 07 STI] Stage 2+ Power Package w/V3 - JDMuscleEngine Package Dealscobb613X12P](http://jdmuscleusa.com/cdn/shop/products/cobb-04-07-sti-stage-2-power-package-wv3-6696612.jpg?v=1770330623&width=220)
![Cobb [04 - 07 STI] Stage 2+ Power Package w/V3 - JDMuscleEngine Package Dealscobb613X12P](http://jdmuscleusa.com/cdn/shop/products/cobb-04-07-sti-stage-2-power-package-wv3-9696565.jpg?v=1770330624&width=220)
![Torque Solution [02 - 07 WRX / STi] Small Battery Tie Down - Red | TS - SU - 613R - JDMuscleBattery Tie Downs and TraystqsTS-SU-613R](http://jdmuscleusa.com/cdn/shop/products/torque-solution-02-07-wrx-sti-small-battery-tie-down-red-ts-su-613r-9249659.jpg?v=1770329843&width=220)
