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 Oil Pan Hardware Kit WRX 2002-2014 / STI 2004+ / Forester XT 2004-2008 | OPHK
Regular price $54.00Sale price $54.00 Regular priceUnit price per$54.00 -
Killer B Motorsport 02-14 WRX / 04-21 STI Cast High Performance Oil Pan Silver | EJ25PAN
Regular price $549.00Sale price $549.00 Regular priceUnit price per$549.00 -
Up to $14.12 offCusco Turbo Heat Shield WRX/STI 2002-2007
Regular price $76.88Sale price $76.88 Regular priceUnit price per$91.00 -
Up to $153.12 offCusco Transmission & Differential Cooler Kit 9 Row - Universal
Regular price $806.88Sale price $806.88 Regular priceUnit price per$960.00 -
AEM Short Ram Intake WRX/STI 2002-2007 | 22-474B
Regular price From $249.99Sale price From $249.99 Regular priceUnit price per$249.99 -
Up to $5.12 offAEM Coolant Temperature Sensor Kit w/3/8 inch Female Weld-In Aluminum Bung - Universal | 30-2011
Regular price $46.07Sale price $46.07 Regular priceUnit price per$51.19 -
Up to $11.23 off
In StockAEM Water/Methanol Injection Filter - Universal | 30-3003
Only 4 leftRegular price $44.96Sale price $44.96 Regular priceUnit price per$56.19 -
Up to $1,130.96 offAEM Infinity-10 Stand-Alone Programmable Engine Management System EMS - Universal | 30-7100
Regular price $2,908.18Sale price $2,908.18 Regular priceUnit price per$4,039.14 -
Up to $994.01 offAEM Infinity-8 Stand-Alone Programmable Engine Management System EMS - Universal | 30-7101
Regular price $2,556.02Sale price $2,556.02 Regular priceUnit price per$3,550.03 -
Up to $50.30 off
In StockAEM V2 5 Gal Tank Kit w/ Conductive Fluid Level Sensor - Universal | 30-3320
Only 2 leftRegular price $200.65Sale price $200.65 Regular priceUnit price per$250.95 -
Up to $116 off
In StockAEM V2 Water/Methanol Injection Kit - NO TANK | Internal Map - Universal | 30-3302
Only 3 leftRegular price $459.95Sale price $459.95 Regular priceUnit price per$575.95 -
Up to $44.40 off
In StockAEM 400LPH High Pressure Fuel Pump - Universal | 50-1005
Regular price $174.55Sale price $174.55 Regular priceUnit price per$218.95 -
Up to $132 off
In StockAEM V2 1 Gallon Water/Methanol Injection Kit - Universal | 30-3300
Only 18 leftRegular price $520.95Sale price $520.95 Regular priceUnit price per$652.95 -
Subaru OEM Cam Seal Subaru 2.5L SOHC EJ251 Subaru All Models | 806732150
Regular price $10.10Sale price $10.10 Regular priceUnit price per$10.10 -
Subaru OEM Valve Cover Washer WRX 2002-2005 | 13271AA071
Regular price $3.57Sale price $3.57 Regular priceUnit price per$3.57 -
Subaru OEM Gasket and Seal Kit Subaru Impreza WRX 2004-2005 | 10105AA5609X
Regular price $322.88Sale price $322.88 Regular priceUnit price per$322.88