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
-
In StockIAG PTFE Fuel Line Kit
Fits: 08-14 WRX, 08-21 STI
Only 1 leftRegular price $499.99Sale price $499.99 Regular priceUnit price per$499.99 -
![Mishimoto [08 - 14 WRX / 08 - 21 STI] Silicone Radiator Hose Kit Neon Yellow | MMHOSE - STI - 08NY - JDMuscleRadiator HosesmisMMHOSE-STI-08NY](//jdmuscleusa.com/cdn/shop/products/mishimoto-08-14-wrx-08-21-sti-silicone-radiator-hose-kit-neon-yellow-mmhose-sti-08ny-9748599.jpg?v=1770329892&width=220)
![Mishimoto [08 - 14 WRX / 08 - 21 STI] Silicone Radiator Hose Kit Neon Yellow | MMHOSE - STI - 08NY - JDMuscleRadiator HosesmisMMHOSE-STI-08NY](//jdmuscleusa.com/cdn/shop/products/mishimoto-08-14-wrx-08-21-sti-silicone-radiator-hose-kit-neon-yellow-mmhose-sti-08ny-3106639.jpg?v=1770329892&width=220)
Up to $16.05 off
In StockMishimoto Silicone Radiator Hose Kit Neon Yellow | MMHOSE-STI-08NY
Fits: 08-14 WRX / 08-21 STI
Only 6 leftRegular price $155.95Sale price $155.95 Regular priceUnit price per$172.00 -
Up to $70.57 off
In StockGSC Power-Division Single Beehive Valve Spring Set w/ Titanium Retainers Subaru Models | inc. 2002-2014 WRX / 2004+ STI
Only 17 leftRegular price $399.92Sale price $399.92 Regular priceUnit price per$470.49 -
In StockIAG 02-14 WRX / 04-21 STI / 05-12 LGT / 05-09 Outback XT / 04-13 FXT Stage 2 CNC Ported 11mm Oil Pump | IAG-ENG-2240
Only 1 leftRegular price $479.99Sale price $479.99 Regular priceUnit price per$479.99 -
In StockIAG Performance 02-14 WRX / 04-21 STI / 05-09 LGT / 04-13 FXT Oil Control Baffle / Windage Tray Combo | IAG-ENG-2087
Only 2 leftRegular price From $199.99Sale price From $199.99 Regular priceUnit price per$199.99 -
Up to $20 off
In StockIAG Garret GT Series Turbo Oil Feed Line & AVCS Line for Subaru Multiple Fitments
Only 1 leftRegular price From $119.99Sale price From $119.99 Regular priceUnit price per$136.36 -
IAG Stage 2 2.5L Subaru Short Block for Subaru Multiple Fitments
Regular price $4,955.41Sale price $4,955.41 Regular priceUnit price per$3,925.98 -
IAG Performance V2 Oil Pickup
Fits: 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT
Regular price $149.99Sale price $149.99 Regular priceUnit price per$149.99 -
In StockCobb Tuning Subaru Oil Cap - Stealth Black
Fits: 15-26 WRX, 15-21 WRX STI, 13-26 BRZ, 02-14 Impreza, 04-13 Forester XT, 05-12 Legacy GT, 05-09 Outback XT, 20-25 Legacy XT/Sport, 20-26 Outback XT/Wilderness
Only 7 leftRegular price $96.00Sale price $96.00 Regular priceUnit price per$96.00 -
In StockCobb Tuning Turbo Blanket - Subaru EJ Stock
Fits: 02-14 WRX, 04-21 STI, 04-13 Forester XT, 05-09 Legacy GT, 05-09 Outback XT
Regular price $198.00Sale price $198.00 Regular priceUnit price per$198.00 -
Cobb Tuning Fuel System Upgrade Package
Fits: 08-21 STI
Regular price $1,903.00Sale price $1,903.00 Regular priceUnit price per$1,903.00 -
![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 Tuning 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 Tuning Fuel Rails / Line Kit Package
Fits: 08-21 STI
Regular price $808.00Sale price $808.00 Regular priceUnit price per$808.00 -
![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 Tuning Turbo Heat Shield - Stainless Steel
Fits: 02-07 WRX, 04-21 STI, 04-08 Forester XT
Only 18 leftRegular price $101.00Sale price $101.00 Regular priceUnit price per$101.00 -
![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 5 leftRegular price $136.00Sale price $136.00 Regular priceUnit price per$136.00
![Mishimoto [08 - 14 WRX / 08 - 21 STI] Silicone Radiator Hose Kit Neon Yellow | MMHOSE - STI - 08NY - JDMuscleRadiator HosesmisMMHOSE-STI-08NY](http://jdmuscleusa.com/cdn/shop/products/mishimoto-08-14-wrx-08-21-sti-silicone-radiator-hose-kit-neon-yellow-mmhose-sti-08ny-9748599.jpg?v=1770329892&width=220)
![Mishimoto [08 - 14 WRX / 08 - 21 STI] Silicone Radiator Hose Kit Neon Yellow | MMHOSE - STI - 08NY - JDMuscleRadiator HosesmisMMHOSE-STI-08NY](http://jdmuscleusa.com/cdn/shop/products/mishimoto-08-14-wrx-08-21-sti-silicone-radiator-hose-kit-neon-yellow-mmhose-sti-08ny-3106639.jpg?v=1770329892&width=220)
![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)