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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IAG Air / Oil Separator | AOS
Fits: 08-14 WRX & 08-21 STI
Regular price $499.99Sale price $499.99 Regular priceUnit price per$499.99 -
IAG Air / Oil Separator | AOS
Fits: 08-14 WRX, 08-21 STI
Regular price $499.99Sale price $499.99 Regular priceUnit price per$499.99 -
![Grimmspeed [08 - 21 WRX/STI, 05 - 09 LGT, 13 - 21 BRZ] 12MM Two Position Exhaust Hanger | 070046 - JDMuscleExhaust Hangersgrm070046](//jdmuscleusa.com/cdn/shop/files/grimmspeed-08-21-wrxsti-05-09-lgt-13-21-brz-12mm-two-position-exhaust-hanger-070046-7377472.jpg?v=1770327639&width=220)
![Grimmspeed [08 - 21 WRX/STI, 05 - 09 LGT, 13 - 21 BRZ] 12MM Two Position Exhaust Hanger | 070046 - JDMuscleExhaust Hangersgrm070046](//jdmuscleusa.com/cdn/shop/files/grimmspeed-08-21-wrxsti-05-09-lgt-13-21-brz-12mm-two-position-exhaust-hanger-070046-1039545.jpg?v=1770327639&width=220)
Grimmspeed 12MM Two Position Exhaust Hanger | 070046
Fits: 08-21 WRX/STI, 05-09 LGT, 13-21 BRZ
Regular price $29.00Sale price $29.00 Regular priceUnit price per$29.00 -
Up to $9.21 offTorque Solution 06-14 WRX / 04-21 STI Stock Location Turbo Oil Feed Line | TS-SU-577
Regular price $113.00Sale price $113.00 Regular priceUnit price per$122.21 -
![Perrin [06 - 14 WRX, 07 - 21 STI, 12 - 16 Impreza, 06 - 13 FXT, 05 - 09 Legacy] Alternator Pulley Black | PSP - ENG - 119BK - JDMusclePulleysperPSP-ENG-119BK](//jdmuscleusa.com/cdn/shop/files/perrin-06-14-wrx-07-21-sti-12-16-impreza-06-13-fxt-05-09-legacy-alternator-pulley-black-psp-eng-119bk-8778143.jpg?v=1770327968&width=220)
Up to $9.15 off
In StockPerrin Alternator Pulley Black | PSP-ENG-119BK
Fits: 06-14 WRX, 07-21 STI, 12-16 Impreza, 06-13 FXT, 05-09 Legacy
Only 8 leftRegular price $51.85Sale price $51.85 Regular priceUnit price per$61.00 -
![Radium Engineering [02 - 14 WRX/STI] Top Feed Fuel Rails Black | 20 - 0567 - 02 - JDMuscleFuel Railsrad20-0567-02](//jdmuscleusa.com/cdn/shop/files/radium-engineering-02-14-wrxsti-top-feed-fuel-rails-black-20-0567-02-7682151.jpg?v=1770327979&width=220)
![Radium Engineering [02 - 14 WRX/STI] Top Feed Fuel Rails Black | 20 - 0567 - 02 - JDMuscleFuel Railsrad20-0567-02](//jdmuscleusa.com/cdn/shop/files/radium-engineering-02-14-wrxsti-top-feed-fuel-rails-black-20-0567-02-8318867.jpg?v=1770327980&width=220)
In StockRadium Engineering Top Feed Fuel Rails Black
Fits: 02-14 WRX/STI
Only 14 leftRegular price $199.45Sale price $199.45 Regular priceUnit price per$199.45 -
Grimmspeed Top Mount Intercooler - Raw
Fits: 04-21 STI, 02-07 WRX, 04-08 FXT
Regular price $999.00Sale price $999.00 Regular priceUnit price per$999.00 -
IAG V3 Black Top Feed TGV Housings with Butterfly Pass Thru
Fits: 08-14 WRX, 07-14 STI, 07-12 LGT, 09-13 FXT
Regular price $399.99Sale price $399.99 Regular priceUnit price per$399.99 -
IAG Performance 550 Series EJ25 Short Block
Fits: 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT
Regular price $4,499.00Sale price $4,499.00 Regular priceUnit price per$0.00 -
Up to $35.05 off
In StockMishimoto Performance Aluminum Radiator Manual Transmission
Fits: 08-14 WRX, 08-21 STI
Only 13 leftRegular price $349.95Sale price $349.95 Regular priceUnit price per$385.00 -
IAG EJ Competition Oil Pan Package
Fits: 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT
Regular price $799.99Sale price $799.99 Regular priceUnit price per$799.99 -
IAG 06-14 WRX / 04-21 STI Air / Oil Separator | AOS V2 Competition to V2 Street Series Conversion Kit | V2 AOS Only | IAG-ENG-7110
Regular price $104.99Sale price $104.99 Regular priceUnit price per$104.99 -
![COBB [02 - 14 WRX, 07 - 21 STI, 07 - 12 LGT, 07 - 11 FXT] Fuel Injectors Top Feed 1300x - JDMuscleFuel Injectors and Accessoriescobb312230](//jdmuscleusa.com/cdn/shop/products/cobb-02-14-wrx-07-21-sti-07-12-lgt-07-11-fxt-fuel-injectors-top-feed-1300x-2633778.jpg?v=1775590690&width=220)
![COBB [02 - 14 WRX, 07 - 21 STI, 07 - 12 LGT, 07 - 11 FXT] Fuel Injectors Top Feed 1300x - JDMuscleFuel Injectors and Accessoriescobb312230](//jdmuscleusa.com/cdn/shop/products/cobb-02-14-wrx-07-21-sti-07-12-lgt-07-11-fxt-fuel-injectors-top-feed-1300x-6193334.jpg?v=1775590690&width=220)
Up to $8 offCOBB Fuel Injectors Top Feed 1300x
Fits: 02-14 WRX, 07-21 STI, 07-12 LGT, 07-11 FXT
Regular price $952.00Sale price $952.00 Regular priceUnit price per$960.00 -
![Radium Engineering [08-21 WRX/STI] V2 Fuel Pump Hanger for use w/ Walbro 255LPH | GSS342 or AEM 340LPH | 50-1200 Pumps - JDMuscleFuel Pumps and Accessoriesrad20-0780-00](//jdmuscleusa.com/cdn/shop/products/radium-engineering-08-21-wrxsti-v2-fuel-pump-hanger-for-use-w-walbro-255lph-gss342-or-aem-340lph-50-1200-pumps-9489482.jpg?v=1781013619&width=220)
![Radium Engineering [08-21 WRX/STI] V2 Fuel Pump Hanger for use w/ Walbro 255LPH | GSS342 or AEM 340LPH | 50-1200 Pumps - JDMuscleFuel Pumps and Accessoriesrad20-0780-00](//jdmuscleusa.com/cdn/shop/products/radium-engineering-08-21-wrxsti-v2-fuel-pump-hanger-for-use-w-walbro-255lph-gss342-or-aem-340lph-50-1200-pumps-5575397.jpg?v=1781013619&width=220)
Up to $26 off
In StockRadium Engineering V2 Fuel Pump Hanger for use w/ Walbro 255LPH | GSS342 or AEM 340LPH | 50-1200 Pumps
Fits: 08-21 WRX/STI
Only 4 leftRegular price $493.95Sale price $493.95 Regular priceUnit price per$519.95 -
Forced Performance FP GREEN Turbocharger 84mm 8cm IWG w/ Oil Feed Line Subaru STI 2004+ / WRX 2002-2007 | 2025110
Regular price $7,582.00Sale price $7,582.00 Regular priceUnit price per$7,582.00 -
Up to $60 offPLM Precision Works Top Feed Fuel Rails WRX 2002-2014 / STI 2007-2020 / Legacy GT 2008-2012 / Forester XT 2006-2013 | PW-TOP-FEED-FR-SUB
Regular price $135.00Sale price $135.00 Regular priceUnit price per$195.00
![Grimmspeed [08 - 21 WRX/STI, 05 - 09 LGT, 13 - 21 BRZ] 12MM Two Position Exhaust Hanger | 070046 - JDMuscleExhaust Hangersgrm070046](http://jdmuscleusa.com/cdn/shop/files/grimmspeed-08-21-wrxsti-05-09-lgt-13-21-brz-12mm-two-position-exhaust-hanger-070046-7377472.jpg?v=1770327639&width=220)
![Grimmspeed [08 - 21 WRX/STI, 05 - 09 LGT, 13 - 21 BRZ] 12MM Two Position Exhaust Hanger | 070046 - JDMuscleExhaust Hangersgrm070046](http://jdmuscleusa.com/cdn/shop/files/grimmspeed-08-21-wrxsti-05-09-lgt-13-21-brz-12mm-two-position-exhaust-hanger-070046-1039545.jpg?v=1770327639&width=220)
![Perrin [06 - 14 WRX, 07 - 21 STI, 12 - 16 Impreza, 06 - 13 FXT, 05 - 09 Legacy] Alternator Pulley Black | PSP - ENG - 119BK - JDMusclePulleysperPSP-ENG-119BK](http://jdmuscleusa.com/cdn/shop/files/perrin-06-14-wrx-07-21-sti-12-16-impreza-06-13-fxt-05-09-legacy-alternator-pulley-black-psp-eng-119bk-8778143.jpg?v=1770327968&width=220)
![Radium Engineering [02 - 14 WRX/STI] Top Feed Fuel Rails Black | 20 - 0567 - 02 - JDMuscleFuel Railsrad20-0567-02](http://jdmuscleusa.com/cdn/shop/files/radium-engineering-02-14-wrxsti-top-feed-fuel-rails-black-20-0567-02-7682151.jpg?v=1770327979&width=220)
![Radium Engineering [02 - 14 WRX/STI] Top Feed Fuel Rails Black | 20 - 0567 - 02 - JDMuscleFuel Railsrad20-0567-02](http://jdmuscleusa.com/cdn/shop/files/radium-engineering-02-14-wrxsti-top-feed-fuel-rails-black-20-0567-02-8318867.jpg?v=1770327980&width=220)
![COBB [02 - 14 WRX, 07 - 21 STI, 07 - 12 LGT, 07 - 11 FXT] Fuel Injectors Top Feed 1300x - JDMuscleFuel Injectors and Accessoriescobb312230](http://jdmuscleusa.com/cdn/shop/products/cobb-02-14-wrx-07-21-sti-07-12-lgt-07-11-fxt-fuel-injectors-top-feed-1300x-2633778.jpg?v=1775590690&width=220)
![COBB [02 - 14 WRX, 07 - 21 STI, 07 - 12 LGT, 07 - 11 FXT] Fuel Injectors Top Feed 1300x - JDMuscleFuel Injectors and Accessoriescobb312230](http://jdmuscleusa.com/cdn/shop/products/cobb-02-14-wrx-07-21-sti-07-12-lgt-07-11-fxt-fuel-injectors-top-feed-1300x-6193334.jpg?v=1775590690&width=220)
![Radium Engineering [08-21 WRX/STI] V2 Fuel Pump Hanger for use w/ Walbro 255LPH | GSS342 or AEM 340LPH | 50-1200 Pumps - JDMuscleFuel Pumps and Accessoriesrad20-0780-00](http://jdmuscleusa.com/cdn/shop/products/radium-engineering-08-21-wrxsti-v2-fuel-pump-hanger-for-use-w-walbro-255lph-gss342-or-aem-340lph-50-1200-pumps-9489482.jpg?v=1781013619&width=220)
![Radium Engineering [08-21 WRX/STI] V2 Fuel Pump Hanger for use w/ Walbro 255LPH | GSS342 or AEM 340LPH | 50-1200 Pumps - JDMuscleFuel Pumps and Accessoriesrad20-0780-00](http://jdmuscleusa.com/cdn/shop/products/radium-engineering-08-21-wrxsti-v2-fuel-pump-hanger-for-use-w-walbro-255lph-gss342-or-aem-340lph-50-1200-pumps-5575397.jpg?v=1781013619&width=220)
