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 $3.57 off
In StockMishimoto Straight Coupler 2.5-in D X 3-in L - Universal
Regular price From $11.95Sale price From $11.95 Regular priceUnit price per$13.00 -
Up to $36.05 offMishimoto Cold Air Intake Kit Polished WRX 2008-2014 / STI 2008-2014
Regular price $355.95Sale price $355.95 Regular priceUnit price per$392.00 -
![Mishimoto [02-07 WRX, 04-21 STI, 04-08 FXT] Turbo Inlet Hose Red | MMHOSE-SUB-IHRD](//jdmuscleusa.com/cdn/shop/products/mishimoto-red-silicone-turbo-inlet-hose-subaru-wrx-2002-2007-sti-2004-2019-turbo-inlet-hoses-and-pipes-mishimoto-mmhose-sub-ihrd.jpg?v=1614515263&width=220)
![Mishimoto [02-07 WRX, 04-21 STI, 04-08 FXT] Turbo Inlet Hose Red | MMHOSE-SUB-IHRD](//jdmuscleusa.com/cdn/shop/products/mishimoto-red-silicone-turbo-inlet-hose-subaru-wrx-2002-2007-sti-2004-2019-turbo-inlet-hoses-and-pipes-mishimoto-mmhose-sub-ihrd-2.jpg?v=1614515264&width=220)
Up to $28.05 off
In StockMishimoto Turbo Inlet Hose Red | MMHOSE-SUB-IHRD
Fits: 02-07 WRX, 04-21 STI, 04-08 FXT
Only 3 leftRegular price $276.95Sale price $276.95 Regular priceUnit price per$305.00 -
Up to $61.05 off
In StockMishimoto 08-14 STI Black Thermostatic Oil Cooler Kit | MMOC-STI-08TBK
Only 1 leftRegular price $610.95Sale price $610.95 Regular priceUnit price per$672.00 -
Up to $61.05 offMishimoto 08-14 STI Silver Thermostatic Oil Cooler Kit
Regular price $610.95Sale price $610.95 Regular priceUnit price per$672.00 -
Mishimoto 08-14 WRX/STI X-Line Complete Radiator Kit
Regular price From $423.00Sale price From $423.00 Regular priceUnit price per$0.00 -
Up to $38.05 off
In StockMishimoto R Line Intercooler Black - Universal
Only 3 leftRegular price $376.95Sale price $376.95 Regular priceUnit price per$415.00 -
Up to $7.05 off
In StockMishimoto Oil Block Sandwich Adaptor - Universal | MMOP-TPS
Regular price $66.95Sale price $66.95 Regular priceUnit price per$74.00 -
Up to $35.05 off
In StockMishimoto M Line Intercooler Eat Sleep Race Edition G/G - Universal
Only 6 leftRegular price $351.95Sale price $351.95 Regular priceUnit price per$387.00 -
Up to $34.05 off
In StockMishimoto Aluminum Radiator 25in x 16in x 3in - Universal
Only 5 leftRegular price $339.95Sale price $339.95 Regular priceUnit price per$374.00 -
Killer B Performance Hardened Uppipe Studs WRX/STI | All Turbo Models | STS
Regular price $32.00Sale price $32.00 Regular priceUnit price per$32.00 -
Up to $28 off
In StockCusco Oil Catch Can | 692 009 A
Fits: 08-14 WRX/STI
Only 2 leftRegular price $147.00Sale price $147.00 Regular priceUnit price per$175.00 -
Up to $2.10 off
In StockAEM 08-14 WRX / 08-18 STI Air Filter | 28-20304
Only 7 leftRegular price $50.39Sale price $50.39 Regular priceUnit price per$52.49 -
Up to $31.90 off
In StockAEM Boost Control Solenoid - Universal | 30-2400
Only 12 leftRegular price $125.05Sale price $125.05 Regular priceUnit price per$156.95 -
Up to $159 off
In StockAEM V2 5 Gallon Water/Methanol Injection Kit | Internal Map - Universal | 30-3301
Only 6 leftRegular price $628.95Sale price $628.95 Regular priceUnit price per$787.95 -
Up to $76.70 off
In StockAEM Ethanol Content Flex Fuel Sensor w/ -6AN fittings Kit - Universal | 30-2201
Only 5 leftRegular price $303.25Sale price $303.25 Regular priceUnit price per$379.95
![Mishimoto [02-07 WRX, 04-21 STI, 04-08 FXT] Turbo Inlet Hose Red | MMHOSE-SUB-IHRD](http://jdmuscleusa.com/cdn/shop/products/mishimoto-red-silicone-turbo-inlet-hose-subaru-wrx-2002-2007-sti-2004-2019-turbo-inlet-hoses-and-pipes-mishimoto-mmhose-sub-ihrd.jpg?v=1614515263&width=220)
![Mishimoto [02-07 WRX, 04-21 STI, 04-08 FXT] Turbo Inlet Hose Red | MMHOSE-SUB-IHRD](http://jdmuscleusa.com/cdn/shop/products/mishimoto-red-silicone-turbo-inlet-hose-subaru-wrx-2002-2007-sti-2004-2019-turbo-inlet-hoses-and-pipes-mishimoto-mmhose-sub-ihrd-2.jpg?v=1614515264&width=220)
