Optimize your Subaru STI 2008-2014 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.
2008-2014 Subaru WRX STI Engine Parts
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Up to $18.05 off
In StockMishimoto 12 Inch Race Line High-Flow Electric Fan - Universal
Only 5 leftRegular price From $151.51Sale price From $151.51 Regular priceUnit price per$0.00 -
Up to $48.05 off
In StockMishimoto 19 Row X-Line Oil Cooler Kit - Universal
Only 4 leftRegular price $482.95Sale price $482.95 Regular priceUnit price per$531.00 -
Up to $24.05 off
In StockMishimoto Gold Z Line Intercooler - Universal
Only 2 leftRegular price $241.95Sale price $241.95 Regular priceUnit price per$266.00 -
Up to $4.05 off
In StockMishimoto Straight Coupler with 1/8NPT Bung - Universal
Only 9 leftRegular price $39.95Sale price $39.95 Regular priceUnit price per$44.00 -
Up to $54.05 off
In StockMishimoto Thermostatic 19 Row Oil Cooler Kit - Universal
Only 4 leftRegular price $539.95Sale price $539.95 Regular priceUnit price per$594.00 -
Up to $43.05 offMishimoto Thermostatic 10 Row Oil Cooler Kit - Universal
Regular price $428.95Sale price $428.95 Regular priceUnit price per$472.00 -
Up to $140 offKiller B Motorsport 02-14 WRX / 04-21 STI 4-1 Holy Header Exhaust Manifold DIY Rotated | HH-DIY
Regular price $1,429.00Sale price $1,429.00 Regular priceUnit price per$1,569.00 -
Killer B Motorsport 08-14 WRX / 08-21 STI Relocated Oil Fill Tube | OFTB-1
Regular price $197.00Sale price $197.00 Regular priceUnit price per$197.00 -
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 $96 offCusco Transmission & Differential Cooler Kit 9 Row - Universal
Regular price $864.00Sale price $864.00 Regular priceUnit price per$960.00 -
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 $7 off
In StockAEM Water/Methanol Injection Filter - Universal | 30-3003
Only 6 leftRegular price $51.95Sale price $51.95 Regular priceUnit price per$58.95 -
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 $29 offAEM V2 5 Gal Tank Kit w/ Conductive Fluid Level Sensor - Universal | 30-3320
Regular price $230.95Sale price $230.95 Regular priceUnit price per$259.95 -
Up to $67 off
In StockAEM V2 Water/Methanol Injection Kit - NO TANK | Internal Map - Universal | 30-3302
Only 4 leftRegular price $531.95Sale price $531.95 Regular priceUnit price per$598.95 -
Up to $75 off
In StockAEM V2 1 Gallon Water/Methanol Injection Kit - Universal | 30-3300
Only 19 leftRegular price $599.95Sale price $599.95 Regular priceUnit price per$674.95
