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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![Cobb [08 - 21 STI] Fuel System Package + Flex Fuel - JDMuscleFlex FuelcobbSUB000FSFF](//jdmuscleusa.com/cdn/shop/products/cobb-08-21-sti-fuel-system-package-flex-fuel-7366625.jpg?v=1775590694&width=220)
![Cobb [08 - 21 STI] Fuel System Package + Flex Fuel - JDMuscleFlex FuelcobbSUB000FSFF](//jdmuscleusa.com/cdn/shop/products/cobb-08-21-sti-fuel-system-package-flex-fuel-1808390.jpg?v=1775590694&width=220)
Cobb Fuel System Package + Flex Fuel
Fits: 08-21 STI
Regular price $2,660.00Sale price $2,660.00 Regular priceUnit price per$2,660.00 -
![Cobb [08 - 21 STI] Fuel Rail Line Kit to Flex Fuel - JDMuscleFuel Railscobb315260](//jdmuscleusa.com/cdn/shop/products/cobb-08-21-sti-fuel-rail-line-kit-to-flex-fuel-5673463.jpg?v=1775590689&width=220)
![Cobb [08 - 21 STI] Fuel Rail Line Kit to Flex Fuel - JDMuscleFuel Railscobb315260](//jdmuscleusa.com/cdn/shop/products/cobb-08-21-sti-fuel-rail-line-kit-to-flex-fuel-2516991.jpg?v=1775590689&width=220)
Cobb Fuel Rail Line Kit to Flex Fuel
Fits: 08-21 STI
Regular price $175.00Sale price $175.00 Regular priceUnit price per$175.00 -
In StockCobb Front Mount Intercooler Bypass Valve Adapter
Fits: 02-07 WRX, 04-21 STI
Only 17 leftRegular price $92.00Sale price $92.00 Regular priceUnit price per$92.00 -
In StockCobb SF Intake System Hardware Kit
Fits: 08-14 WRX, 08-21 STI
Only 5 leftRegular price $16.00Sale price $16.00 Regular priceUnit price per$16.00 -
![COBB [08 - 14 WRX/STI, 05 - 09 Legacy GT, 09 - 13 Forester XT] SF Air Box | 724160 for 715100 - JDMuscleAir Boxescobb724160](//jdmuscleusa.com/cdn/shop/products/cobb-08-14-wrxsti-05-09-legacy-gt-09-13-forester-xt-sf-air-box-724160-for-715100-9405858.jpg?v=1770336430&width=220)
![COBB [08 - 14 WRX/STI, 05 - 09 Legacy GT, 09 - 13 Forester XT] SF Air Box | 724160 for 715100 - JDMuscleAir Boxescobb724160](//jdmuscleusa.com/cdn/shop/products/cobb-08-14-wrxsti-05-09-legacy-gt-09-13-forester-xt-sf-air-box-724160-for-715100-3487824.jpg?v=1770336430&width=220)
In StockCOBB SF Air Box
Fits: 08-14 WRX/STI, 05-09 Legacy GT, 09-13 Forester XT
Regular price $207.00Sale price $207.00 Regular priceUnit price per$207.00 -
![Cobb [08 - 14 WRX, 08 - 21 STI] Flex Fuel + Fuel Upgrade Package - JDMuscleFlex FuelcobbSUB0FF0050](//jdmuscleusa.com/cdn/shop/products/cobb-08-14-wrx-08-21-sti-flex-fuel-fuel-upgrade-package-3039725.jpg?v=1775590818&width=220)
![Cobb [08 - 14 WRX, 08 - 21 STI] Flex Fuel + Fuel Upgrade Package - JDMuscleFlex FuelcobbSUB0FF0050](//jdmuscleusa.com/cdn/shop/products/cobb-08-14-wrx-08-21-sti-flex-fuel-fuel-upgrade-package-4485216.jpg?v=1775590818&width=220)
Cobb Flex Fuel + Fuel Upgrade Package
Fits: 08-14 WRX, 08-21 STI
Regular price $1,485.00Sale price $1,485.00 Regular priceUnit price per$1,485.00 -
Rexpeed Carbon Fiber Bumper Heat Shield Subaru STI 2008-2010 | G05
Regular price $290.00Sale price $290.00 Regular priceUnit price per$183.00 -
TR Unequal Length Exhaust Manifold w/ Up-pipe for Subaru 2002-2014 WRX / 2004+ STI | TR-ES1000
Regular price $990.00Sale price $990.00 Regular priceUnit price per$860.00 -
TR TD05-20G Turbo Subaru 2002-2007 WRX / 2004+ STI | TR-TS1001
Regular price $1,520.00Sale price $1,520.00 Regular priceUnit price per$1,325.00 -
TR TD05-16G Turbo Subaru 2002-2007 WRX / 2004+ STI | TR-TS1002
Regular price $1,180.00Sale price $1,180.00 Regular priceUnit price per$1,030.00 -
TR TD06-20G Turbo for Subaru 2002-2007 WRX / 2004+ STI | TR-TS1008
Regular price $1,670.00Sale price $1,670.00 Regular priceUnit price per$1,450.00 -
TR Equal Length Exhaust Manifold w/ Up-pipe for WRX 2002-2014 / STI 2004+ | TR-ES1001
Regular price $990.00Sale price $990.00 Regular priceUnit price per$860.00 -
TR Timing Belt Guide Subaru 2002-2014 WRX / 2004+ STI | TR-AS1001
Regular price $60.00Sale price $60.00 Regular priceUnit price per$55.00 -
TR Air Oil Separator for WRX 2002-2007 / STI 2004+ | TR-AO1000
Regular price $340.00Sale price $340.00 Regular priceUnit price per$299.00 -
TR TD06-20G Twin Scroll Turbo WRX 2002-2007/ STi 2007-21 | TR-TS1015
Regular price $1,780.00Sale price $1,780.00 Regular priceUnit price per$1,550.00 -
Tomioka Racing Lightweight Crank Pulley Subaru 2002-2014 WRX / 2004+ STI | TR-TM2040
Regular price $160.00Sale price $160.00 Regular priceUnit price per$140.00
![Cobb [08 - 21 STI] Fuel System Package + Flex Fuel - JDMuscleFlex FuelcobbSUB000FSFF](http://jdmuscleusa.com/cdn/shop/products/cobb-08-21-sti-fuel-system-package-flex-fuel-7366625.jpg?v=1775590694&width=220)
![Cobb [08 - 21 STI] Fuel System Package + Flex Fuel - JDMuscleFlex FuelcobbSUB000FSFF](http://jdmuscleusa.com/cdn/shop/products/cobb-08-21-sti-fuel-system-package-flex-fuel-1808390.jpg?v=1775590694&width=220)
![Cobb [08 - 21 STI] Fuel Rail Line Kit to Flex Fuel - JDMuscleFuel Railscobb315260](http://jdmuscleusa.com/cdn/shop/products/cobb-08-21-sti-fuel-rail-line-kit-to-flex-fuel-5673463.jpg?v=1775590689&width=220)
![Cobb [08 - 21 STI] Fuel Rail Line Kit to Flex Fuel - JDMuscleFuel Railscobb315260](http://jdmuscleusa.com/cdn/shop/products/cobb-08-21-sti-fuel-rail-line-kit-to-flex-fuel-2516991.jpg?v=1775590689&width=220)
![COBB [08 - 14 WRX/STI, 05 - 09 Legacy GT, 09 - 13 Forester XT] SF Air Box | 724160 for 715100 - JDMuscleAir Boxescobb724160](http://jdmuscleusa.com/cdn/shop/products/cobb-08-14-wrxsti-05-09-legacy-gt-09-13-forester-xt-sf-air-box-724160-for-715100-9405858.jpg?v=1770336430&width=220)
![COBB [08 - 14 WRX/STI, 05 - 09 Legacy GT, 09 - 13 Forester XT] SF Air Box | 724160 for 715100 - JDMuscleAir Boxescobb724160](http://jdmuscleusa.com/cdn/shop/products/cobb-08-14-wrxsti-05-09-legacy-gt-09-13-forester-xt-sf-air-box-724160-for-715100-3487824.jpg?v=1770336430&width=220)
![Cobb [08 - 14 WRX, 08 - 21 STI] Flex Fuel + Fuel Upgrade Package - JDMuscleFlex FuelcobbSUB0FF0050](http://jdmuscleusa.com/cdn/shop/products/cobb-08-14-wrx-08-21-sti-flex-fuel-fuel-upgrade-package-3039725.jpg?v=1775590818&width=220)
![Cobb [08 - 14 WRX, 08 - 21 STI] Flex Fuel + Fuel Upgrade Package - JDMuscleFlex FuelcobbSUB0FF0050](http://jdmuscleusa.com/cdn/shop/products/cobb-08-14-wrx-08-21-sti-flex-fuel-fuel-upgrade-package-4485216.jpg?v=1775590818&width=220)
