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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In StockGates Micro-V Belt Alternator & Power Steering Belt
Fits: 02-14 WRX, 04-21 STI
Only 3 leftRegular price $32.00Sale price $32.00 Regular priceUnit price per$32.00 -
Up to $165 off
In StockPerrin Air Oil Separator Neon Yellow w/ FMIC
Fits: 02-14 WRX, 04-21 STI, 05-09 LGT
Only 3 leftRegular price $407.00Sale price $407.00 Regular priceUnit price per$572.00 -
![Seibon Carbon Fiber Hood/Trunk Prop w/ Seibon Logo [Universal] | HOODPROP-S](//jdmuscleusa.com/cdn/shop/products/seibon-carbon-fiber-hoodtrunk-prop-w-seibon-logo-universal-hoodprop-s-hood-dampers-seibon-seihoodprop-s.jpg?v=1614519856&width=220)
![Seibon Carbon Fiber Hood/Trunk Prop w/ Seibon Logo [Universal] | HOODPROP-S](//jdmuscleusa.com/cdn/shop/files/Siebon_Authorized_Dealer_963508de-6254-4ebb-b06f-da40665ca67a.png?v=1738252169&width=220)
Up to $13 off
In StockSeibon Carbon Fiber Hood/Trunk Prop w/ Seibon Logo
Fits: Universal
Regular price $117.00Sale price $117.00 Regular priceUnit price per$130.00 -
Walbro 450lph E85 Compatiable Fuel Pump & Installation Kit | TIA485-2 - Universal
Regular price $206.00Sale price $206.00 Regular priceUnit price per$206.00 -
![GrimmSpeed [02-07 WRX / 04-21 STI] Air/Oil Separator | 078006](//jdmuscleusa.com/cdn/shop/products/grimmspeed-air-oil-separator-subaru-sti-2004-2020-078006-air-oil-separators-grimmspeed-red-078006r-2.jpg?v=1614675538&width=220)
![GrimmSpeed [02-07 WRX / 04-21 STI] Air/Oil Separator | 078006](//jdmuscleusa.com/cdn/shop/products/grimmspeed-air-oil-separator-subaru-sti-2004-2020-078006-air-oil-separators-grimmspeed-3.jpg?v=1614658553&width=220)
GrimmSpeed Air/Oil Separator | 078006
Fits: 02-07 WRX / 04-21 STI
Regular price $426.00Sale price $426.00 Regular priceUnit price per$426.00 -
Up to $656 off
In StockInvidia Dual N1 Single Layer Titanium Tipped Cat Back Exhaust | HS08STIGTT
Fits: 08-14 STI, 11-14 WRX Hatchback
Only 11 leftRegular price $1,213.00Sale price $1,213.00 Regular priceUnit price per$1,869.00 -
Up to $11.55 off
In StockPerrin Boost Control Solenoid Cover - Neon Yellow
Fits: 08-21 STI
Only 9 leftRegular price $65.45Sale price $65.45 Regular priceUnit price per$77.00 -
Up to $41.05 off
In StockMishimoto X-Line Aluminum Radiator
Fits: 08-14 WRX, 08-21 STI
Only 4 leftRegular price $409.95Sale price $409.95 Regular priceUnit price per$451.00 -
Up to $4 off
In StockCusco Oil Drain Plug M20x1.5 - Universal
Only 19 leftRegular price $23.00Sale price $23.00 Regular priceUnit price per$27.00 -
![Perrin Performance [08 - 14 Subaru Impreza, 15 - 21 WRX, STI] Replacement Foam Filter - JDMuscleAir Intake Filter ReplacementsperX-PSP-INT-324-2](//jdmuscleusa.com/cdn/shop/files/perrin-performance-08-14-subaru-impreza-15-21-wrx-sti-replacement-foam-filter-4247907.jpg?v=1770324910&width=220)
![Perrin Performance [08 - 14 Subaru Impreza, 15 - 21 WRX, STI] Replacement Foam Filter - JDMuscleAir Intake Filter ReplacementsperX-PSP-INT-324-2](//jdmuscleusa.com/cdn/shop/files/perrin-performance-08-14-subaru-impreza-15-21-wrx-sti-replacement-foam-filter-8308968.jpg?v=1770324909&width=220)
Up to $13.95 off
In StockPerrin Performance Replacement Foam Filter
Fits: 08-14 Subaru Impreza, 15-21 WRX, STI
Only 12 leftRegular price $79.05Sale price $79.05 Regular priceUnit price per$93.00 -
Grimmspeed 04-21 STI / 02-07 WRX V2 Bypass Valve Black | 126032BLK
Regular price $352.00Sale price $352.00 Regular priceUnit price per$352.00 -
![IAG [02 - 14 WRX, 04 - 21 STI, 05 - 09 LGT, 04 - 13 FXT] Street Series Oil Pan Package | IAG - ENG - 2201 - JDMuscleOil PansIAG-ENG-2201SLSilver](//jdmuscleusa.com/cdn/shop/products/iag-02-14-wrx-04-21-sti-05-09-lgt-04-13-fxt-street-series-oil-pan-package-iag-eng-2201-8112980.jpg?v=1770331224&width=220)
![IAG [02 - 14 WRX, 04 - 21 STI, 05 - 09 LGT, 04 - 13 FXT] Street Series Oil Pan Package | IAG - ENG - 2201 - JDMuscleOil PansIAG-ENG-2201SLSilver](//jdmuscleusa.com/cdn/shop/products/iag-02-14-wrx-04-21-sti-05-09-lgt-04-13-fxt-street-series-oil-pan-package-iag-eng-2201-2248205.jpg?v=1770331225&width=220)
IAG Street Series Oil Pan Package
Fits: 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT
Regular price From $699.99Sale price From $699.99 Regular priceUnit price per$699.99 -
![Turbosmart [02 - 07 WRX, 04 - 21 STI] 34mm Blow Off Valve Plug | TS - 0205 - 2016 - JDMuscleBlow Off ValvesTBSTS-0205-2016](//jdmuscleusa.com/cdn/shop/products/turbosmart-02-07-wrx-04-21-sti-34mm-blow-off-valve-plug-ts-0205-2016-4504580.jpg?v=1770334633&width=220)
Up to $1.60 off
In StockTurbosmart 34mm Blow Off Valve Plug
Fits: 02-07 WRX, 04-21 STI
Only 3 leftRegular price $14.39Sale price $14.39 Regular priceUnit price per$15.99 -
![Radium Engineering [08-21 WRX/STI, 05-09 LGT/OBXT] V2 Fuel Pump Hanger for use w/ Walbro 450LPH | F90000267/274/285 Pumps - JDMuscleFuel Pumps and Accessoriesrad20-0782-00](//jdmuscleusa.com/cdn/shop/products/radium-engineering-08-21-wrxsti-05-09-lgtobxt-v2-fuel-pump-hanger-for-use-w-walbro-450lph-f90000267274285-pumps-6792551.jpg?v=1781013619&width=220)
![Radium Engineering [08-21 WRX/STI, 05-09 LGT/OBXT] V2 Fuel Pump Hanger for use w/ Walbro 450LPH | F90000267/274/285 Pumps - JDMuscleFuel Pumps and Accessoriesrad20-0782-00](//jdmuscleusa.com/cdn/shop/products/radium-engineering-08-21-wrxsti-05-09-lgtobxt-v2-fuel-pump-hanger-for-use-w-walbro-450lph-f90000267274285-pumps-8701445.jpg?v=1781013620&width=220)
Up to $27 off
In StockRadium Engineering V2 Fuel Pump Hanger for use w/ Walbro 450LPH | F90000267/274/285 Pumps
Fits: 08-21 WRX/STI, 05-09 LGT/OBXT
Only 13 leftRegular price $512.95Sale price $512.95 Regular priceUnit price per$539.95 -
![Grimmspeed [08-21 STI] Electronic Boost Control Solenoid Cover Red | 112000.1](//jdmuscleusa.com/cdn/shop/products/71f0a2b859a69208469686b40823a198.jpg?v=1625540441&width=220)
![Grimmspeed [08-21 STI] Electronic Boost Control Solenoid Cover Red | 112000.1](//jdmuscleusa.com/cdn/shop/products/b1946da1e56ab3842da05068f67450c0.jpg?v=1625540441&width=220)
Grimmspeed Electronic Boost Control Solenoid Cover Red
Fits: 08-21 STI
Regular price $87.00Sale price $87.00 Regular priceUnit price per$87.00 -
![Perrin [08-14 WRX, 08-15 STI] Cold Air Intake - Neon Yellow](//jdmuscleusa.com/cdn/shop/files/PSP-INT-322NY_01.jpg?v=1758312546&width=220)
![Perrin [08-14 WRX, 08-15 STI] Cold Air Intake - Neon Yellow](//jdmuscleusa.com/cdn/shop/files/PSP-INT-322NY_02.jpg?v=1758312546&width=220)
Up to $64.65 off
In StockPerrin Cold Air Intake - Neon Yellow
Fits: 08-14 WRX, 08-15 STI
Only 11 leftRegular price $366.35Sale price $366.35 Regular priceUnit price per$431.00
![Seibon Carbon Fiber Hood/Trunk Prop w/ Seibon Logo [Universal] | HOODPROP-S](http://jdmuscleusa.com/cdn/shop/products/seibon-carbon-fiber-hoodtrunk-prop-w-seibon-logo-universal-hoodprop-s-hood-dampers-seibon-seihoodprop-s.jpg?v=1614519856&width=220){kind=logo}
![Seibon Carbon Fiber Hood/Trunk Prop w/ Seibon Logo [Universal] | HOODPROP-S](http://jdmuscleusa.com/cdn/shop/files/Siebon_Authorized_Dealer_963508de-6254-4ebb-b06f-da40665ca67a.png?v=1738252169&width=220)
![GrimmSpeed [02-07 WRX / 04-21 STI] Air/Oil Separator | 078006](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-air-oil-separator-subaru-sti-2004-2020-078006-air-oil-separators-grimmspeed-red-078006r-2.jpg?v=1614675538&width=220)
![GrimmSpeed [02-07 WRX / 04-21 STI] Air/Oil Separator | 078006](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-air-oil-separator-subaru-sti-2004-2020-078006-air-oil-separators-grimmspeed-3.jpg?v=1614658553&width=220)
![Perrin Performance [08 - 14 Subaru Impreza, 15 - 21 WRX, STI] Replacement Foam Filter - JDMuscleAir Intake Filter ReplacementsperX-PSP-INT-324-2](http://jdmuscleusa.com/cdn/shop/files/perrin-performance-08-14-subaru-impreza-15-21-wrx-sti-replacement-foam-filter-4247907.jpg?v=1770324910&width=220)
![Perrin Performance [08 - 14 Subaru Impreza, 15 - 21 WRX, STI] Replacement Foam Filter - JDMuscleAir Intake Filter ReplacementsperX-PSP-INT-324-2](http://jdmuscleusa.com/cdn/shop/files/perrin-performance-08-14-subaru-impreza-15-21-wrx-sti-replacement-foam-filter-8308968.jpg?v=1770324909&width=220)
![IAG [02 - 14 WRX, 04 - 21 STI, 05 - 09 LGT, 04 - 13 FXT] Street Series Oil Pan Package | IAG - ENG - 2201 - JDMuscleOil PansIAG-ENG-2201SLSilver](http://jdmuscleusa.com/cdn/shop/products/iag-02-14-wrx-04-21-sti-05-09-lgt-04-13-fxt-street-series-oil-pan-package-iag-eng-2201-8112980.jpg?v=1770331224&width=220)
![IAG [02 - 14 WRX, 04 - 21 STI, 05 - 09 LGT, 04 - 13 FXT] Street Series Oil Pan Package | IAG - ENG - 2201 - JDMuscleOil PansIAG-ENG-2201SLSilver](http://jdmuscleusa.com/cdn/shop/products/iag-02-14-wrx-04-21-sti-05-09-lgt-04-13-fxt-street-series-oil-pan-package-iag-eng-2201-2248205.jpg?v=1770331225&width=220)
![Turbosmart [02 - 07 WRX, 04 - 21 STI] 34mm Blow Off Valve Plug | TS - 0205 - 2016 - JDMuscleBlow Off ValvesTBSTS-0205-2016](http://jdmuscleusa.com/cdn/shop/products/turbosmart-02-07-wrx-04-21-sti-34mm-blow-off-valve-plug-ts-0205-2016-4504580.jpg?v=1770334633&width=220)
![Radium Engineering [08-21 WRX/STI, 05-09 LGT/OBXT] V2 Fuel Pump Hanger for use w/ Walbro 450LPH | F90000267/274/285 Pumps - JDMuscleFuel Pumps and Accessoriesrad20-0782-00](http://jdmuscleusa.com/cdn/shop/products/radium-engineering-08-21-wrxsti-05-09-lgtobxt-v2-fuel-pump-hanger-for-use-w-walbro-450lph-f90000267274285-pumps-6792551.jpg?v=1781013619&width=220)
![Radium Engineering [08-21 WRX/STI, 05-09 LGT/OBXT] V2 Fuel Pump Hanger for use w/ Walbro 450LPH | F90000267/274/285 Pumps - JDMuscleFuel Pumps and Accessoriesrad20-0782-00](http://jdmuscleusa.com/cdn/shop/products/radium-engineering-08-21-wrxsti-05-09-lgtobxt-v2-fuel-pump-hanger-for-use-w-walbro-450lph-f90000267274285-pumps-8701445.jpg?v=1781013620&width=220)
![Grimmspeed [08-21 STI] Electronic Boost Control Solenoid Cover Red | 112000.1](http://jdmuscleusa.com/cdn/shop/products/71f0a2b859a69208469686b40823a198.jpg?v=1625540441&width=220)
![Grimmspeed [08-21 STI] Electronic Boost Control Solenoid Cover Red | 112000.1](http://jdmuscleusa.com/cdn/shop/products/b1946da1e56ab3842da05068f67450c0.jpg?v=1625540441&width=220)
![Perrin [08-14 WRX, 08-15 STI] Cold Air Intake - Neon Yellow](http://jdmuscleusa.com/cdn/shop/files/PSP-INT-322NY_01.jpg?v=1758312546&width=220)
![Perrin [08-14 WRX, 08-15 STI] Cold Air Intake - Neon Yellow](http://jdmuscleusa.com/cdn/shop/files/PSP-INT-322NY_02.jpg?v=1758312546&width=220)