Optimize your Subaru WRX 2002-2005 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 WRX the edge on the road or track.
Subaru WRX 2002-2005 Engine Parts
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![Killer B Motorsport [02-14 WRX, 04-21 STI] High Performance Oil Pan w/ High Flow Style Pick and Baffle Combo | PPBC-HF - JDMuscleOil PansklbPPBC-HF](//jdmuscleusa.com/cdn/shop/products/killer-b-motorsport-02-14-wrx-04-21-sti-high-performance-oil-pan-w-high-flow-style-pick-and-baffle-combo-ppbc-hf-1160881.jpg?v=1786515676&width=220)
![Killer B Motorsport [02-14 WRX, 04-21 STI] High Performance Oil Pan w/ High Flow Style Pick and Baffle Combo | PPBC-HF - JDMuscleOil PansklbPPBC-HF](//jdmuscleusa.com/cdn/shop/products/killer-b-motorsport-02-14-wrx-04-21-sti-high-performance-oil-pan-w-high-flow-style-pick-and-baffle-combo-ppbc-hf-1982859.jpg?v=1786515676&width=220)
Killer B Motorsport High Performance Oil Pan w/ High Flow Style Pick and Baffle Combo | PPBC-HF
Fits: 02-14 WRX, 04-21 STI
Regular price $725.00Sale price $725.00 Regular priceUnit price per$725.00 -
Forced Performance Blue HTZ Turbocharger - Subaru Models | inc. 2002-2007 WRX / 2004+ STI | 2025050
Regular price $7,120.00Sale price $7,120.00 Regular priceUnit price per$7,120.00 -
In StockInjector Dynamics 02-14 WRX / 07-21 STI ID1050X Top Feed Fuel Injectors | 1050.48.11.WRX.4
Regular price $600.60Sale price $600.60 Regular priceUnit price per$600.60 -
Injector Dynamics 02-14 WRX / 07-21 STI Fuel Injectors Top Feed 1700cc | 1700.48.11.WRX.4
Regular price $1,218.00Sale price $1,218.00 Regular priceUnit price per$1,218.00 -
![GrimmSpeed [02-07 WRX, 04-07 STI, 04-08 FXT] Post MAF Hose Kit - Black | 125009 - JDMuscleAir Intake and MAF Hosesgrm125009](//jdmuscleusa.com/cdn/shop/products/grimmspeed-02-07-wrx-04-07-sti-04-08-fxt-post-maf-hose-kit-black-125009-7645281.jpg?v=1786515804&width=220)
![GrimmSpeed [02-07 WRX, 04-07 STI, 04-08 FXT] Post MAF Hose Kit - Black | 125009 - JDMuscleAir Intake and MAF Hosesgrm125009](//jdmuscleusa.com/cdn/shop/products/grimmspeed-02-07-wrx-04-07-sti-04-08-fxt-post-maf-hose-kit-black-125009-5838336.jpg?v=1786515804&width=220)
GrimmSpeed Post MAF Hose Kit - Black | 125009
Fits: 02-07 WRX, 04-07 STI, 04-08 FXT
Regular price $121.00Sale price $121.00 Regular priceUnit price per$121.00 -
Up to $52.52 off
In StockGo Fast Bits Deceptor Pro II Electronically Adjustable Blow Off Valve | T9503
Fits: 02-07 WRX, 04-21 STI, 06-08 FXT
Only 4 leftRegular price $472.68Sale price $472.68 Regular priceUnit price per$525.20 -
In StockHKS 02-07 WRX / 04-07 STI SSQV4 Blow Off Valve | 71008-AF006
Regular price $435.00Sale price $435.00 Regular priceUnit price per$435.00 -
Up to $3 off
In StockVibrant 3-Bolt High Temperature Exhaust Gasket - Universal
Regular price From $5.99Sale price From $5.99 Regular priceUnit price per$7.99 -
Royal Purple Ultra Performance Grease - Universal
Regular price $20.00Sale price $20.00 Regular priceUnit price per$20.00 -
![Tomei [02-07 WRX, 04-21 STI, 04-08 FXT] Silicone Turbo Inlet Hose - Blue | TB301A-SB01A](//jdmuscleusa.com/cdn/shop/files/tomei-silicone-turbo-inlet-hose-blue-2002-2007-wrx-2004-2021-sti-2004-2008-fxt-tb301a-sb01a-237363_556x417_34b0da4a-8a6c-4abb-b20e-88640a1ae4a0.jpg?v=1690926590&width=220)
Up to $19 off
In StockTomei Silicone Turbo Inlet Hose - Blue | TB301A-SB01A
Fits: 02-07 WRX, 04-21 STI, 04-08 FXT
Only 5 leftRegular price $171.00Sale price $171.00 Regular priceUnit price per$190.00 -
NRG Fender Washer Kit FW-200 Titanium Burn - Universal | FW-200TT
Regular price $44.00Sale price $44.00 Regular priceUnit price per$44.00 -
In StockNRG Classic White Wood Glowing Green Grain Steering Wheel - Universal | ST-015BK-GL
Only 4 leftRegular price $160.00Sale price $160.00 Regular priceUnit price per$160.00 -
Up to $221 offPerrin Air Oil Separator - Neon Yellow | PSP-ENG-605NY
Fits: 02-07 WRX, 04-07 STI
Regular price $351.00Sale price $351.00 Regular priceUnit price per$572.00 -
Up to $49.95 off
In StockPerrin Turbo Inlet Hose 3in Black
Fits: 02-07 WRX, 04-21 STI, 04-08 FXT
Regular price $283.05Sale price $283.05 Regular priceUnit price per$333.00 -
![Aeromotive Fuel Pressure Regulator [Universal] | 13129](//jdmuscleusa.com/cdn/shop/products/aeromotive-fuel-pressure-regulator-13129-universal-fuel-pressure-regulators-aeromotive-aer13129.jpg?v=1614524090&width=220)
In StockAeromotive Fuel Pressure Regulator | 13129
Fits: Universal
Only 19 leftRegular price $208.60Sale price $208.60 Regular priceUnit price per$208.60 -
In StockDeatschWerks DW200 Fuel Pump - Universal
Regular price $109.00Sale price $109.00 Regular priceUnit price per$109.00
![Killer B Motorsport [02-14 WRX, 04-21 STI] High Performance Oil Pan w/ High Flow Style Pick and Baffle Combo | PPBC-HF - JDMuscleOil PansklbPPBC-HF](http://jdmuscleusa.com/cdn/shop/products/killer-b-motorsport-02-14-wrx-04-21-sti-high-performance-oil-pan-w-high-flow-style-pick-and-baffle-combo-ppbc-hf-1160881.jpg?v=1786515676&width=220)
![Killer B Motorsport [02-14 WRX, 04-21 STI] High Performance Oil Pan w/ High Flow Style Pick and Baffle Combo | PPBC-HF - JDMuscleOil PansklbPPBC-HF](http://jdmuscleusa.com/cdn/shop/products/killer-b-motorsport-02-14-wrx-04-21-sti-high-performance-oil-pan-w-high-flow-style-pick-and-baffle-combo-ppbc-hf-1982859.jpg?v=1786515676&width=220)
![GrimmSpeed [02-07 WRX, 04-07 STI, 04-08 FXT] Post MAF Hose Kit - Black | 125009 - JDMuscleAir Intake and MAF Hosesgrm125009](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-02-07-wrx-04-07-sti-04-08-fxt-post-maf-hose-kit-black-125009-7645281.jpg?v=1786515804&width=220)
![GrimmSpeed [02-07 WRX, 04-07 STI, 04-08 FXT] Post MAF Hose Kit - Black | 125009 - JDMuscleAir Intake and MAF Hosesgrm125009](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-02-07-wrx-04-07-sti-04-08-fxt-post-maf-hose-kit-black-125009-5838336.jpg?v=1786515804&width=220)
![Tomei [02-07 WRX, 04-21 STI, 04-08 FXT] Silicone Turbo Inlet Hose - Blue | TB301A-SB01A](http://jdmuscleusa.com/cdn/shop/files/tomei-silicone-turbo-inlet-hose-blue-2002-2007-wrx-2004-2021-sti-2004-2008-fxt-tb301a-sb01a-237363_556x417_34b0da4a-8a6c-4abb-b20e-88640a1ae4a0.jpg?v=1690926590&width=220)
![Aeromotive Fuel Pressure Regulator [Universal] | 13129](http://jdmuscleusa.com/cdn/shop/products/aeromotive-fuel-pressure-regulator-13129-universal-fuel-pressure-regulators-aeromotive-aer13129.jpg?v=1614524090&width=220)
