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
-
APR 08-14 WRX / 08-21 STI Carbon Fiber Alternator Cover | CBE-WRXALT08
Regular price $154.00Sale price $154.00 Regular priceUnit price per$154.00 -
![Subaru OEM Tumbler to Engine Gasket [WRX/STI Subaru EJ Turbo Models] | 14035AA421](//jdmuscleusa.com/cdn/shop/products/subaru-oem-tumbler-to-engine-gasket-wrx-sti-subaru-ej-turbo-models-2002-2020-14035aa421-intake-system-gaskets-subaru-oem-sub14035aa421.jpg?v=1614543684&width=220)
Subaru OEM Tumbler to Engine Gasket | 14035AA421
Fits: WRX/STI Subaru EJ Turbo Models
Regular price $5.88Sale price $5.88 Regular priceUnit price per$5.88 -
Killer B 02-07 WRX / 04-21 STI OEM Coupler for Motorsport Extreme Flow HARD Turbo Inlet | TIEJCOE
Regular price $49.00Sale price $49.00 Regular priceUnit price per$49.00 -
Grimmspeed V2 Bypass Valve Red
Fits: 04-21 STI, 02-07 WRX
Regular price $311.00Sale price $311.00 Regular priceUnit price per$311.00 -
In StockCOBB Subaru EJ Turbo Blanket Black Lava
Only 6 leftRegular price $217.00Sale price $217.00 Regular priceUnit price per$217.00 -
![Perrin [15 - 21 WRX] Engine Cover Kit - Intercooler Shroud + Pulley Cover - Hyper Pink | PSP - ENG - 165HP - JDMuscleEngine CoversperPSP-ENG-165HP](//jdmuscleusa.com/cdn/shop/products/perrin-15-21-wrx-engine-cover-kit-intercooler-shroud-pulley-cover-hyper-pink-psp-eng-165hp-6366990.jpg?v=1770330556&width=220)
![Perrin [15 - 21 WRX] Engine Cover Kit - Intercooler Shroud + Pulley Cover - Hyper Pink | PSP - ENG - 165HP - JDMuscleEngine CoversperPSP-ENG-165HP](//jdmuscleusa.com/cdn/shop/products/perrin-15-21-wrx-engine-cover-kit-intercooler-shroud-pulley-cover-hyper-pink-psp-eng-165hp-3749594.jpg?v=1770330556&width=220)
Up to $55.50 offPerrin Engine Cover Kit - Intercooler Shroud + Pulley Cover - Hyper Pink | PSP-ENG-165HP
Fits: 15-21 WRX
Regular price $314.50Sale price $314.50 Regular priceUnit price per$370.00 -
IAG Performance Unequal Length Header & Up Pipe for 2002-2014 WRX and 2004-21 WRX STI | IAG-EXT-1000
Regular price $849.99Sale price $849.99 Regular priceUnit price per$849.99 -
IAG Performance Equal Length Header & Up Pipe for Multiple Subaru Fitments
Regular price $899.99Sale price $899.99 Regular priceUnit price per$899.99 -
Up to $28.50 off
In StockTurbosmart Blow Off Valve Kompact Dual Port Black
Fits: 02-07 WRX, 04-21 STI
Only 6 leftRegular price $256.49Sale price $256.49 Regular priceUnit price per$284.99 -
TR Twin Scroll High Flow Catless Downpipe
Fits: 08-14 WRX, 08-18 STI
Regular price $750.00Sale price $750.00 Regular priceUnit price per$600.00 -
![Perrin [02-07 WRX, 04-07 STI] Post MAF Hose - Black - JDMuscleAir Intake and MAF HosesperPSP-INT-350BK](//jdmuscleusa.com/cdn/shop/products/perrin-02-07-wrx-04-07-sti-post-maf-hose-black-6669568.jpg?v=1781013192&width=220)
Up to $19.05 off
In StockPerrin Post MAF Hose - Black
Fits: 02-07 WRX, 04-07 STI
Only 9 leftRegular price $107.95Sale price $107.95 Regular priceUnit price per$127.00 -
Up to $23.70 off
In StockPerrin Lightened Crank Pulley Blue
Fits: 02-14 WRX, 04-21 STI, 05-09 Legacy, 04-13 FXT
Only 9 leftRegular price $134.30Sale price $134.30 Regular priceUnit price per$158.00 -
In StockProthane Universal Super Grease - 0.5oz Pack of 3 - Red
Regular price $11.00Sale price $11.00 Regular priceUnit price per$11.00 -
In StockHKS Hi-Power Cat Back Exhaust | 3106-EX008
Fits: 02-07 WRX, 04-07STI
Regular price $770.00Sale price $770.00 Regular priceUnit price per$770.00 -
Up to $233.33 off
In StockSnow Performance Gas Stage 2 The New Boost Cooler Forced Induction Water/Methanol Injection Kit - Universal
Regular price $583.34Sale price $583.34 Regular priceUnit price per$816.67 -
In StockKartboy Battery Tie Down | KB-100-BT
Fits: Most Subaru Models
Regular price $45.00Sale price $45.00 Regular priceUnit price per$45.00
![Subaru OEM Tumbler to Engine Gasket [WRX/STI Subaru EJ Turbo Models] | 14035AA421](http://jdmuscleusa.com/cdn/shop/products/subaru-oem-tumbler-to-engine-gasket-wrx-sti-subaru-ej-turbo-models-2002-2020-14035aa421-intake-system-gaskets-subaru-oem-sub14035aa421.jpg?v=1614543684&width=220)
![Perrin [15 - 21 WRX] Engine Cover Kit - Intercooler Shroud + Pulley Cover - Hyper Pink | PSP - ENG - 165HP - JDMuscleEngine CoversperPSP-ENG-165HP](http://jdmuscleusa.com/cdn/shop/products/perrin-15-21-wrx-engine-cover-kit-intercooler-shroud-pulley-cover-hyper-pink-psp-eng-165hp-6366990.jpg?v=1770330556&width=220)
![Perrin [15 - 21 WRX] Engine Cover Kit - Intercooler Shroud + Pulley Cover - Hyper Pink | PSP - ENG - 165HP - JDMuscleEngine CoversperPSP-ENG-165HP](http://jdmuscleusa.com/cdn/shop/products/perrin-15-21-wrx-engine-cover-kit-intercooler-shroud-pulley-cover-hyper-pink-psp-eng-165hp-3749594.jpg?v=1770330556&width=220)
![Perrin [02-07 WRX, 04-07 STI] Post MAF Hose - Black - JDMuscleAir Intake and MAF HosesperPSP-INT-350BK](http://jdmuscleusa.com/cdn/shop/products/perrin-02-07-wrx-04-07-sti-post-maf-hose-black-6669568.jpg?v=1781013192&width=220)
