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 StockCOBB Oil Filler Cap Black Most Subaru Models
Only 7 leftRegular price $95.00Sale price $95.00 Regular priceUnit price per$95.00 -
In StockCobb Turbo Blanket Subaru EJ Stock
Fits: 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT
Only 20 leftRegular price $198.00Sale price $198.00 Regular priceUnit price per$198.00 -
In StockCOBB Fuel System Upgrade Package
Fits: 08-21 STI
Regular price $1,913.00Sale price $1,913.00 Regular priceUnit price per$1,913.00 -
![Cobb [06 - 14 WRX, 04 - 21 STI, 06 - 09 Legacy GT/Outback XT, 06 - 13 Forester XT] 2in Up Pipe - JDMuscleTurbo Uppipescobb512260](//jdmuscleusa.com/cdn/shop/products/cobb-06-14-wrx-04-21-sti-06-09-legacy-gtoutback-xt-06-13-forester-xt-2in-up-pipe-5151324.jpg?v=1775590815&width=220)
Cobb 2in Up Pipe
Fits: 06-14 WRX, 04-21 STI, 06-09 Legacy GT/Outback XT, 06-13 Forester XT
Regular price $256.00Sale price $256.00 Regular priceUnit price per$256.00 -
In StockCOBB Fuel Rails / Line Kit Package
Fits: 08-21 STI
Regular price $818.00Sale price $818.00 Regular priceUnit price per$818.00 -
![COBB [02 - 07 WRX, 04 - 21 STI, 04 - 08 FXT] Turbo Heat Shield | 512510 - JDMuscleExhaust Heat Shieldscobb512510](//jdmuscleusa.com/cdn/shop/products/cobb-02-07-wrx-04-21-sti-04-08-fxt-turbo-heat-shield-512510-9973074.jpg?v=1770336438&width=220)
![COBB [02 - 07 WRX, 04 - 21 STI, 04 - 08 FXT] Turbo Heat Shield | 512510 - JDMuscleExhaust Heat Shieldscobb512510](//jdmuscleusa.com/cdn/shop/products/cobb-02-07-wrx-04-21-sti-04-08-fxt-turbo-heat-shield-512510-8795408.jpg?v=1770336438&width=220)
In StockCOBB Turbo Heat Shield
Fits: 02-07 WRX, 04-21 STI, 04-08 FXT
Regular price $106.00Sale price $106.00 Regular priceUnit price per$106.00 -
![JDMuscle [11 - 14 WRX/STI Sedan] Carbon Fiber Exhaust Trim Covers / Heat Shields - JDMuscleExhaust Heat ShieldsJDM-WRX11-EHS12x2 Regular Carbon Fiber](//jdmuscleusa.com/cdn/shop/products/jdmuscle-11-14-wrxsti-sedan-carbon-fiber-exhaust-trim-covers-heat-shields-3799038.png?v=1770336625&width=220)
In StockJDMuscle Carbon Fiber Exhaust Trim Covers / Heat Shields
Fits: 11-14 WRX/STI Sedan
Only 1 leftRegular price From $249.00Sale price From $249.00 Regular priceUnit price per$249.00 -
![Grimmspeed [08-21 WRX/STI] Lightweight Battery Mount Kit Red | grm121034 - JDMuscleBattery Tie Downs and Traysgrm121034](//jdmuscleusa.com/cdn/shop/products/grimmspeed-08-21-wrxsti-lightweight-battery-mount-kit-red-grm121034-2916803.jpg?v=1781013149&width=220)
![Grimmspeed [08-21 WRX/STI] Lightweight Battery Mount Kit Red | grm121034 - JDMuscleBattery Tie Downs and Traysgrm121034](//jdmuscleusa.com/cdn/shop/products/grimmspeed-08-21-wrxsti-lightweight-battery-mount-kit-red-grm121034-5184115.jpg?v=1781013149&width=220)
In StockGrimmspeed Lightweight Battery Mount Kit Red | grm121034
Fits: 08-21 WRX/STI
Only 4 leftRegular price $135.00Sale price $135.00 Regular priceUnit price per$135.00 -
Torque Solution TMIC Stud Kit WRX 2002-2007 / STI 2004-21 | TS-SU-TSK
Regular price $18.00Sale price $18.00 Regular priceUnit price per$18.00 -
![Mishimoto [02-14 WRX, 04-21 STI] Titanium Turbo Blanket - JDMuscleHeat Isolation & Heat WrapmisMMTB-WRX-01](//jdmuscleusa.com/cdn/shop/products/mishimoto-02-14-wrx-04-21-sti-titanium-turbo-blanket-1304997.jpg?v=1781013555&width=220)
![Mishimoto [02-14 WRX, 04-21 STI] Titanium Turbo Blanket - JDMuscleHeat Isolation & Heat WrapmisMMTB-WRX-01](//jdmuscleusa.com/cdn/shop/products/mishimoto-02-14-wrx-04-21-sti-titanium-turbo-blanket-5379991.png?v=1781013556&width=220)
Up to $9.05 off
In StockMishimoto Titanium Turbo Blanket
Fits: 02-14 WRX, 04-21 STI
Only 8 leftRegular price $85.95Sale price $85.95 Regular priceUnit price per$95.00 -
![Radium Engineering [08-21 WRX/STI, 05-09 LGT] V2 Fuel Hanger Plumbing Kit w/ Stainless Filter - JDMuscleFuel System Kitsrad20-0629-03](//jdmuscleusa.com/cdn/shop/products/radium-engineering-08-21-wrxsti-05-09-lgt-v2-fuel-hanger-plumbing-kit-w-stainless-filter-4925571.jpg?v=1781013619&width=220)
![Radium Engineering [08-21 WRX/STI, 05-09 LGT] V2 Fuel Hanger Plumbing Kit w/ Stainless Filter - JDMuscleFuel System Kitsrad20-0629-03](//jdmuscleusa.com/cdn/shop/products/radium-engineering-08-21-wrxsti-05-09-lgt-v2-fuel-hanger-plumbing-kit-w-stainless-filter-8152250.jpg?v=1781013618&width=220)
Up to $25 off
In StockRadium Engineering V2 Fuel Hanger Plumbing Kit w/ Stainless Filter
Fits: 08-21 WRX/STI, 05-09 LGT
Only 6 leftRegular price $474.95Sale price $474.95 Regular priceUnit price per$499.95 -
![CSF [08–21 WRX/STI, 08–16 Impreza, 16–17 Crosstrek, 09–13 Forester, 05–09 Legacy/Outback] 2-Row 42mm High-Performance Aluminum Radiator | 7095 - JDMuscleRadiatorscsf7095](//jdmuscleusa.com/cdn/shop/products/csf-08-21-wrxsti-08-16-impreza-16-17-crosstrek-09-13-forester-05-09-legacyoutback-2-row-42mm-high-performance-aluminum-radiator-7095-1693486.jpg?v=1781013731&width=220)
![CSF [08–21 WRX/STI, 08–16 Impreza, 16–17 Crosstrek, 09–13 Forester, 05–09 Legacy/Outback] 2-Row 42mm High-Performance Aluminum Radiator | 7095 - JDMuscleRadiatorscsf7095](//jdmuscleusa.com/cdn/shop/products/csf-08-21-wrxsti-08-16-impreza-16-17-crosstrek-09-13-forester-05-09-legacyoutback-2-row-42mm-high-performance-aluminum-radiator-7095-2750273.jpg?v=1781013731&width=220)
Up to $24 off
In StockCSF 2-Row 42mm High-Performance Aluminum Radiator | 7095
Fits: 08–21 WRX/STI, 08–16 Impreza, 16–17 Crosstrek, 09–13 Forester, 05–09 Legacy/Outback
Regular price $485.00Sale price $485.00 Regular priceUnit price per$509.00 -
Up to $156 off
In StockPerrin 02-14 WRX / 04-21 STI Oil Cooler Kit | PSP-OIL-110
Only 14 leftRegular price $884.00Sale price $884.00 Regular priceUnit price per$1,040.00 -
Grimmspeed 02-07 WRX / 04-21 STI OVERTAKE BB500 Turbocharger Kit | 123006
Regular price $2,649.00Sale price $2,649.00 Regular priceUnit price per$2,649.00 -
FactionFab Axle Back Exhaust Burnt Tips STI 2008-2014 / WRX 2011-2014 Hatchback | FFA1.10200.2
Regular price $498.00Sale price $498.00 Regular priceUnit price per$450.00 -
ETS 08-14 WRX / 04-21 STI V2 MaxFlow Header Exhaust Manifold | 200-10-EXM-PARENT
Regular price $1,706.00Sale price $1,706.00 Regular priceUnit price per$1,706.00
![Cobb [06 - 14 WRX, 04 - 21 STI, 06 - 09 Legacy GT/Outback XT, 06 - 13 Forester XT] 2in Up Pipe - JDMuscleTurbo Uppipescobb512260](http://jdmuscleusa.com/cdn/shop/products/cobb-06-14-wrx-04-21-sti-06-09-legacy-gtoutback-xt-06-13-forester-xt-2in-up-pipe-5151324.jpg?v=1775590815&width=220)
![COBB [02 - 07 WRX, 04 - 21 STI, 04 - 08 FXT] Turbo Heat Shield | 512510 - JDMuscleExhaust Heat Shieldscobb512510](http://jdmuscleusa.com/cdn/shop/products/cobb-02-07-wrx-04-21-sti-04-08-fxt-turbo-heat-shield-512510-9973074.jpg?v=1770336438&width=220)
![COBB [02 - 07 WRX, 04 - 21 STI, 04 - 08 FXT] Turbo Heat Shield | 512510 - JDMuscleExhaust Heat Shieldscobb512510](http://jdmuscleusa.com/cdn/shop/products/cobb-02-07-wrx-04-21-sti-04-08-fxt-turbo-heat-shield-512510-8795408.jpg?v=1770336438&width=220)
![JDMuscle [11 - 14 WRX/STI Sedan] Carbon Fiber Exhaust Trim Covers / Heat Shields - JDMuscleExhaust Heat ShieldsJDM-WRX11-EHS12x2 Regular Carbon Fiber](http://jdmuscleusa.com/cdn/shop/products/jdmuscle-11-14-wrxsti-sedan-carbon-fiber-exhaust-trim-covers-heat-shields-3799038.png?v=1770336625&width=220)
![Grimmspeed [08-21 WRX/STI] Lightweight Battery Mount Kit Red | grm121034 - JDMuscleBattery Tie Downs and Traysgrm121034](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-08-21-wrxsti-lightweight-battery-mount-kit-red-grm121034-2916803.jpg?v=1781013149&width=220)
![Grimmspeed [08-21 WRX/STI] Lightweight Battery Mount Kit Red | grm121034 - JDMuscleBattery Tie Downs and Traysgrm121034](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-08-21-wrxsti-lightweight-battery-mount-kit-red-grm121034-5184115.jpg?v=1781013149&width=220)
![Mishimoto [02-14 WRX, 04-21 STI] Titanium Turbo Blanket - JDMuscleHeat Isolation & Heat WrapmisMMTB-WRX-01](http://jdmuscleusa.com/cdn/shop/products/mishimoto-02-14-wrx-04-21-sti-titanium-turbo-blanket-1304997.jpg?v=1781013555&width=220)
![Mishimoto [02-14 WRX, 04-21 STI] Titanium Turbo Blanket - JDMuscleHeat Isolation & Heat WrapmisMMTB-WRX-01](http://jdmuscleusa.com/cdn/shop/products/mishimoto-02-14-wrx-04-21-sti-titanium-turbo-blanket-5379991.png?v=1781013556&width=220)
![Radium Engineering [08-21 WRX/STI, 05-09 LGT] V2 Fuel Hanger Plumbing Kit w/ Stainless Filter - JDMuscleFuel System Kitsrad20-0629-03](http://jdmuscleusa.com/cdn/shop/products/radium-engineering-08-21-wrxsti-05-09-lgt-v2-fuel-hanger-plumbing-kit-w-stainless-filter-4925571.jpg?v=1781013619&width=220)
![Radium Engineering [08-21 WRX/STI, 05-09 LGT] V2 Fuel Hanger Plumbing Kit w/ Stainless Filter - JDMuscleFuel System Kitsrad20-0629-03](http://jdmuscleusa.com/cdn/shop/products/radium-engineering-08-21-wrxsti-05-09-lgt-v2-fuel-hanger-plumbing-kit-w-stainless-filter-8152250.jpg?v=1781013618&width=220)
![CSF [08–21 WRX/STI, 08–16 Impreza, 16–17 Crosstrek, 09–13 Forester, 05–09 Legacy/Outback] 2-Row 42mm High-Performance Aluminum Radiator | 7095 - JDMuscleRadiatorscsf7095](http://jdmuscleusa.com/cdn/shop/products/csf-08-21-wrxsti-08-16-impreza-16-17-crosstrek-09-13-forester-05-09-legacyoutback-2-row-42mm-high-performance-aluminum-radiator-7095-1693486.jpg?v=1781013731&width=220)
![CSF [08–21 WRX/STI, 08–16 Impreza, 16–17 Crosstrek, 09–13 Forester, 05–09 Legacy/Outback] 2-Row 42mm High-Performance Aluminum Radiator | 7095 - JDMuscleRadiatorscsf7095](http://jdmuscleusa.com/cdn/shop/products/csf-08-21-wrxsti-08-16-impreza-16-17-crosstrek-09-13-forester-05-09-legacyoutback-2-row-42mm-high-performance-aluminum-radiator-7095-2750273.jpg?v=1781013731&width=220)
