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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![GrimmSpeed [02-07 WRX, 04-07 STI] Dry-Con Performance Panel Air Filter | 060092 - JDMuscleHigh Flow Replacement Panel Filtersgrm060092](//jdmuscleusa.com/cdn/shop/products/grimmspeed-02-07-wrx-04-07-sti-dry-con-performance-panel-air-filter-060092-9764382.jpg?v=1781013189&width=220)
![GrimmSpeed [02-07 WRX, 04-07 STI] Dry-Con Performance Panel Air Filter | 060092 - JDMuscleHigh Flow Replacement Panel Filtersgrm060092](//jdmuscleusa.com/cdn/shop/products/grimmspeed-02-07-wrx-04-07-sti-dry-con-performance-panel-air-filter-060092-7433784.jpg?v=1781013189&width=220)
GrimmSpeed Dry-Con Performance Panel Air Filter | 060092
Fits: 02-07 WRX, 04-07 STI
Regular price $82.00Sale price $82.00 Regular priceUnit price per$82.00 -
Up to $24.99 off
In StockPLM Precision Works Crank Pulley for Subaru EJ-Series Engine WRX 2002-2014 / STi 2004-21 / Forester XT 2003-2013 / Legacy 1994-2009 / Impreza 1993-2011| PW-SUB-EJ-CP-PARENT
Only 16 leftRegular price $75.00Sale price $75.00 Regular priceUnit price per$99.99 -
Up to $51.05 offMishimoto Oil Cooler Kit Subaru 2006-2007 WRX / 2006-2007 STi | MMOC-WRX-06
Regular price $514.95Sale price $514.95 Regular priceUnit price per$566.00 -
Up to $51.05 offMishimoto Oil Cooler Kit Black 06-07 Subaru 2006-2007 WRX / 2006-2007 STi | MMOC-WRX-06BK
Regular price $514.95Sale price $514.95 Regular priceUnit price per$566.00 -
Up to $18.75 offPerrin Performance FMIC Hose Clamp Kit WRX 2002-2017 / STI 2004-2017 | PSP-ITR-413
Regular price $56.25Sale price $56.25 Regular priceUnit price per$75.00 -
Up to $19 off
In StockTomei Adjustable Cam Gear Exhaust RH Subaru Single AVCS Motors 2004-2007 STI / 2006-2014 WRX | TOMTA302G-SB01A
Only 5 leftRegular price $171.00Sale price $171.00 Regular priceUnit price per$190.00 -
In StockCSF Universal Dual-Pass Oil Cooler - M22 x 1.5 - 13in L x 4.75in H x 2.16in W
Only 6 leftRegular price $315.00Sale price $315.00 Regular priceUnit price per$315.00 -
CSF Universal Signal-Pass Oil Cooler | RSR Style - M22 x 1.5 - 24in L x 5.75in H x 2.16in W
Regular price $619.00Sale price $619.00 Regular priceUnit price per$619.00 -
In StockCSF Universal Dual-Pass Oil Cooler | RS Style - M22 x 1.5 - 24in L x 5.75in H x 2.16in W
Only 3 leftRegular price $619.00Sale price $619.00 Regular priceUnit price per$619.00 -
In StockCSF Universal Dual-Pass Internal/External Oil Cooler - 22.0in L x 5.0in H x 2.25in W
Only 8 leftRegular price $379.00Sale price $379.00 Regular priceUnit price per$379.00 -
Up to $54 off
In StockCSF Universal Triple Pass Dual Core Radiator w/AN Fittings
Only 10 leftRegular price $525.00Sale price $525.00 Regular priceUnit price per$579.00 -
Up to $44 off
In StockCSF Universal Half Radiator w/-16AN & Slip-On Fittings/12in SPAL Fan & Shroud
Only 14 leftRegular price $685.00Sale price $685.00 Regular priceUnit price per$729.00 -
Up to $23 off
In StockAEM High Cap Universal Adjustable Fuel Pressure Regulator | 25-305BK
Only 4 leftRegular price $177.95Sale price $177.95 Regular priceUnit price per$200.95 -
Up to $21 off
In StockAEM Universal Adjustable Fuel Pressure Regulator | 25-302BK
Only 14 leftRegular price $166.95Sale price $166.95 Regular priceUnit price per$187.95 -
Up to $20 off
In StockAEM Universal -10AN High Volume Fuel Filter | 25-201BK
Only 3 leftRegular price $155.95Sale price $155.95 Regular priceUnit price per$175.95 -
Blouch Performance WRX/STI 2002-2007 16G-XT-R Turbocharger Turbo | SUB-TD05H-16G-XT-R
Regular price From $1,495.00Sale price From $1,495.00 Regular priceUnit price per$0.00
![GrimmSpeed [02-07 WRX, 04-07 STI] Dry-Con Performance Panel Air Filter | 060092 - JDMuscleHigh Flow Replacement Panel Filtersgrm060092](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-02-07-wrx-04-07-sti-dry-con-performance-panel-air-filter-060092-9764382.jpg?v=1781013189&width=220)
![GrimmSpeed [02-07 WRX, 04-07 STI] Dry-Con Performance Panel Air Filter | 060092 - JDMuscleHigh Flow Replacement Panel Filtersgrm060092](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-02-07-wrx-04-07-sti-dry-con-performance-panel-air-filter-060092-7433784.jpg?v=1781013189&width=220)
