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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Up to $156 off
In StockPLM Power Driven Subaru EWG 3-Bolt Up Pipe & Dump Tube 38mm WRX 2002-2014 / STI 2004-2020 / Baja Turbo 2004-2006 / Forester XT 2004-2013 / Legacy GT 2005-2009 / Outback XT 2005-2009 | PLM-SUB-UP-PIPE-EWG-38MM-3B
Only 8 leftRegular price $339.00Sale price $339.00 Regular priceUnit price per$495.00 -
In StockGates Micro-V Belt Alternator & Power Steering Belt
Fits: 02-14 WRX, 04-21 STI
Only 10 leftRegular price $29.00Sale price $29.00 Regular priceUnit price per$29.00 -
![Seibon Carbon Fiber Hood/Trunk Prop w/ Seibon Logo [Universal] | HOODPROP-S](//jdmuscleusa.com/cdn/shop/products/seibon-carbon-fiber-hoodtrunk-prop-w-seibon-logo-universal-hoodprop-s-hood-dampers-seibon-seihoodprop-s.jpg?v=1614519856&width=220)
![Seibon Carbon Fiber Hood/Trunk Prop w/ Seibon Logo [Universal] | HOODPROP-S](//jdmuscleusa.com/cdn/shop/files/Siebon_Authorized_Dealer_963508de-6254-4ebb-b06f-da40665ca67a.png?v=1738252169&width=220)
Up to $13 off
In StockSeibon Carbon Fiber Hood/Trunk Prop w/ Seibon Logo
Fits: Universal
Regular price $117.00Sale price $117.00 Regular priceUnit price per$130.00 -
In StockWalbro 450lph E85 Compatiable Fuel Pump & Installation Kit | TIA485-2 - Universal
Regular price $206.00Sale price $206.00 Regular priceUnit price per$206.00 -
![GrimmSpeed [02-07 WRX / 04-21 STI] Air/Oil Separator | 078006](//jdmuscleusa.com/cdn/shop/products/grimmspeed-air-oil-separator-subaru-sti-2004-2020-078006-air-oil-separators-grimmspeed-red-078006r-2.jpg?v=1614675538&width=220)
![GrimmSpeed [02-07 WRX / 04-21 STI] Air/Oil Separator | 078006](//jdmuscleusa.com/cdn/shop/products/grimmspeed-air-oil-separator-subaru-sti-2004-2020-078006-air-oil-separators-grimmspeed-3.jpg?v=1614658553&width=220)
GrimmSpeed Air/Oil Separator | 078006
Fits: 02-07 WRX / 04-21 STI
Regular price $426.00Sale price $426.00 Regular priceUnit price per$426.00 -
Up to $2.70 off
In StockCusco Oil Drain Plug M20x1.5 - Universal
Regular price $24.30Sale price $24.30 Regular priceUnit price per$27.00 -
Grimmspeed 04-21 STI / 02-07 WRX V2 Bypass Valve Black | 126032BLK
Regular price $352.00Sale price $352.00 Regular priceUnit price per$352.00 -
![Perrin [02 - 14 WRX, 04 - 21 STI] Belt Cover Hyper Pink | PSP - ENG - 150HP - JDMuscleBelt CoversperPSP-ENG-150HP](//jdmuscleusa.com/cdn/shop/products/perrin-02-14-wrx-04-21-sti-belt-cover-hyper-pink-psp-eng-150hp-4918766.jpg?v=1770330553&width=220)
![Perrin [02 - 14 WRX, 04 - 21 STI] Belt Cover Hyper Pink | PSP - ENG - 150HP - JDMuscleBelt CoversperPSP-ENG-150HP](//jdmuscleusa.com/cdn/shop/products/perrin-02-14-wrx-04-21-sti-belt-cover-hyper-pink-psp-eng-150hp-8528183.jpg?v=1770330553&width=220)
Up to $17.55 off
In StockPerrin Belt Cover Hyper Pink
Fits: 02-14 WRX, 04-21 STI
Only 11 leftRegular price $99.45Sale price $99.45 Regular priceUnit price per$117.00 -
![IAG [02 - 14 WRX, 04 - 21 STI, 05 - 09 LGT, 04 - 13 FXT] Street Series Oil Pan Package | IAG - ENG - 2201 - JDMuscleOil PansIAG-ENG-2201SLSilver](//jdmuscleusa.com/cdn/shop/products/iag-02-14-wrx-04-21-sti-05-09-lgt-04-13-fxt-street-series-oil-pan-package-iag-eng-2201-8112980.jpg?v=1770331224&width=220)
![IAG [02 - 14 WRX, 04 - 21 STI, 05 - 09 LGT, 04 - 13 FXT] Street Series Oil Pan Package | IAG - ENG - 2201 - JDMuscleOil PansIAG-ENG-2201SLSilver](//jdmuscleusa.com/cdn/shop/products/iag-02-14-wrx-04-21-sti-05-09-lgt-04-13-fxt-street-series-oil-pan-package-iag-eng-2201-2248205.jpg?v=1770331225&width=220)
IAG Street Series Oil Pan Package
Fits: 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT
Regular price From $699.99Sale price From $699.99 Regular priceUnit price per$699.99 -
In StockHKS 06-14 WRX / 04-21 STI Stainless Steel Equal Length Exhaust Manifold | 14019-AF002
Regular price $809.00Sale price $809.00 Regular priceUnit price per$809.00 -
In StockWalbro 450lph In-Tank Fuel Pump E85 Version F90000267 - Universal
Regular price From $128.99Sale price From $128.99 Regular priceUnit price per$0.00 -
Grimmspeed Up Pipe 3-Bolt Inlet - Subaru 2002-2014 WRX / 2004-21 STI / 2005-2009 LGT / 2004-2013 FXT | 007064
Regular price $393.00Sale price $393.00 Regular priceUnit price per$393.00 -
Up to $12.30 offPerrin Oil Cap Round Style Black Most Subaru Models | PSP-ENG-711BK
Regular price $69.70Sale price $69.70 Regular priceUnit price per$82.00 -
Up to $4.05 offMishimoto Carbon Fiber Radiator Cap - Universal
Regular price $40.95Sale price $40.95 Regular priceUnit price per$45.00 -
Killer B Motorsport 02-14 WRX / 04-21 STI OG Style Oil Pickup | 070-110
Regular price $149.00Sale price $149.00 Regular priceUnit price per$149.00 -
Killer B Motorsport 02-14 WRX / 04-21 STI High Performance Oil Pan w/ OG Style Pick and Baffle Combo | PPBC
Regular price $681.00Sale price $681.00 Regular priceUnit price per$681.00
![Seibon Carbon Fiber Hood/Trunk Prop w/ Seibon Logo [Universal] | HOODPROP-S](http://jdmuscleusa.com/cdn/shop/products/seibon-carbon-fiber-hoodtrunk-prop-w-seibon-logo-universal-hoodprop-s-hood-dampers-seibon-seihoodprop-s.jpg?v=1614519856&width=220){kind=logo}
![Seibon Carbon Fiber Hood/Trunk Prop w/ Seibon Logo [Universal] | HOODPROP-S](http://jdmuscleusa.com/cdn/shop/files/Siebon_Authorized_Dealer_963508de-6254-4ebb-b06f-da40665ca67a.png?v=1738252169&width=220)
![GrimmSpeed [02-07 WRX / 04-21 STI] Air/Oil Separator | 078006](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-air-oil-separator-subaru-sti-2004-2020-078006-air-oil-separators-grimmspeed-red-078006r-2.jpg?v=1614675538&width=220)
![GrimmSpeed [02-07 WRX / 04-21 STI] Air/Oil Separator | 078006](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-air-oil-separator-subaru-sti-2004-2020-078006-air-oil-separators-grimmspeed-3.jpg?v=1614658553&width=220)
![Perrin [02 - 14 WRX, 04 - 21 STI] Belt Cover Hyper Pink | PSP - ENG - 150HP - JDMuscleBelt CoversperPSP-ENG-150HP](http://jdmuscleusa.com/cdn/shop/products/perrin-02-14-wrx-04-21-sti-belt-cover-hyper-pink-psp-eng-150hp-4918766.jpg?v=1770330553&width=220)
![Perrin [02 - 14 WRX, 04 - 21 STI] Belt Cover Hyper Pink | PSP - ENG - 150HP - JDMuscleBelt CoversperPSP-ENG-150HP](http://jdmuscleusa.com/cdn/shop/products/perrin-02-14-wrx-04-21-sti-belt-cover-hyper-pink-psp-eng-150hp-8528183.jpg?v=1770330553&width=220)
![IAG [02 - 14 WRX, 04 - 21 STI, 05 - 09 LGT, 04 - 13 FXT] Street Series Oil Pan Package | IAG - ENG - 2201 - JDMuscleOil PansIAG-ENG-2201SLSilver](http://jdmuscleusa.com/cdn/shop/products/iag-02-14-wrx-04-21-sti-05-09-lgt-04-13-fxt-street-series-oil-pan-package-iag-eng-2201-8112980.jpg?v=1770331224&width=220)
![IAG [02 - 14 WRX, 04 - 21 STI, 05 - 09 LGT, 04 - 13 FXT] Street Series Oil Pan Package | IAG - ENG - 2201 - JDMuscleOil PansIAG-ENG-2201SLSilver](http://jdmuscleusa.com/cdn/shop/products/iag-02-14-wrx-04-21-sti-05-09-lgt-04-13-fxt-street-series-oil-pan-package-iag-eng-2201-2248205.jpg?v=1770331225&width=220)
