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 3-Inch 2-Bolt Exhaust Gasket
Fits: Universal
Regular price $25.00Sale price $25.00 Regular priceUnit price per$25.00 -
In StockIAG Performance / ARP 14mm Head Stud Set Most Subaru Models
Only 1 leftRegular price $599.99Sale price $599.99 Regular priceUnit price per$599.99 -
In StockIAG V2 Alternator Relocation Kit for Reversed Intake Manifold for Multiple Subaru Fitments | IAG-ENG-5211
Only 2 leftRegular price $249.99Sale price $249.99 Regular priceUnit price per$249.99 -
![IAG [02 - 14 WRX, 04 - 21 STI, 05 - 09 LGT, 04 - 08 FXT] V2 Timing Belt Guide | IAG - ENG - 5101BK - JDMuscleTiming Belt ComponentsIAG-ENG-5101BK](//jdmuscleusa.com/cdn/shop/products/iag-02-14-wrx-04-21-sti-05-09-lgt-04-08-fxt-v2-timing-belt-guide-iag-eng-5101bk-9536642.jpg?v=1770331224&width=220)
![IAG [02 - 14 WRX, 04 - 21 STI, 05 - 09 LGT, 04 - 08 FXT] V2 Timing Belt Guide | IAG - ENG - 5101BK - JDMuscleTiming Belt ComponentsIAG-ENG-5101BK](//jdmuscleusa.com/cdn/shop/products/iag-02-14-wrx-04-21-sti-05-09-lgt-04-08-fxt-v2-timing-belt-guide-iag-eng-5101bk-6320311.jpg?v=1770331224&width=220)
In StockIAG V2 Timing Belt Guide
Fits: 02-14 WRX, 04-21 STI, 05-09 LGT, 04-08 FXT
Only 1 leftRegular price $59.99Sale price $59.99 Regular priceUnit price per$59.99 -
Up to $36.58 off
In StockAWE 15-25 WRX/ 11-14 WRX Sedan/11-21 STI Sedan Track to Touring Conversion Kit | 3815-41006
Only 4 leftRegular price $695.00Sale price $695.00 Regular priceUnit price per$731.58 -
In StockKartboy 08-21 WRX/STI / 05-09 LGT / 13-21 BRZ 12MM Black Exhaust Hanger Long | KB-011-12mmXL
Regular price $12.00Sale price $12.00 Regular priceUnit price per$12.00 -
MAPerformance 4-1 Equal Length Header Subaru STI 2004-2020 | SUB-ELH-REV2-PARENT
Regular price From $1,199.99Sale price From $1,199.99 Regular priceUnit price per -
![Cobb [11 - 14 WRX/STI] 3 - inch Cat Back Exhaust - JDMuscleCat Back Exhaust Systemcobb515122](//jdmuscleusa.com/cdn/shop/products/cobb-11-14-wrxsti-3-inch-cat-back-exhaust-6018102.jpg?v=1770336324&width=220)
![Cobb [11 - 14 WRX/STI] 3 - inch Cat Back Exhaust - JDMuscleCat Back Exhaust Systemcobb515122](//jdmuscleusa.com/cdn/shop/products/cobb-11-14-wrxsti-3-inch-cat-back-exhaust-7069891.jpg?v=1770336324&width=220)
Up to $125 offCobb Tuning SS 3-inch Cat-Back Exhaust Hardware Kit
Fits: 11-14* WRX/STI Sedan MT
Regular price $1,300.00Sale price $1,300.00 Regular priceUnit price per$1,425.00 -
In StockCobb Tuning Delrin Oil Cap
Fits: 02-26 WRX/STI, 13-26 BRZ, 04-18 Forester XT, 05-12 Legacy GT/20-25 Legacy XT, 05-09 & 20-26 Outback XT, 19-26 Ascent, 13-16 FR-S, 17-21 GT86, 22-26 GR86
Only 5 leftRegular price $97.00Sale price $97.00 Regular priceUnit price per$97.00 -
![Cobb [08 - 14 STI] Front Mount Intercooler Hot Pipes - JDMuscleIntercooler Piping Kitscobb715500-H](//jdmuscleusa.com/cdn/shop/products/cobb-08-14-sti-front-mount-intercooler-hot-pipes-9045978.jpg?v=1770336328&width=220)
In StockCobb Tuning Front Mount Intercooler Hot Pipes - Wrinkle Black
Fits: 11-14* STI
Only 3 leftRegular price $375.00Sale price $375.00 Regular priceUnit price per$375.00 -
![Cobb [08 - 21 STI/WRX, 09 - 10 Impreza 2.5GT] Coolant Overflow Tank - JDMuscleOverflow / Expansion Tankscobb800650](//jdmuscleusa.com/cdn/shop/products/cobb-08-21-stiwrx-09-10-impreza-25gt-coolant-overflow-tank-5219125.jpg?v=1775590688&width=220)
![Cobb [08 - 21 STI/WRX, 09 - 10 Impreza 2.5GT] Coolant Overflow Tank - JDMuscleOverflow / Expansion Tankscobb800650](//jdmuscleusa.com/cdn/shop/products/cobb-08-21-stiwrx-09-10-impreza-25gt-coolant-overflow-tank-7229131.jpg?v=1775590688&width=220)
Cobb Tuning Coolant Overflow Tank - Wrinkle Black
Fits: 08-21 WRX/STI, 09-10 Impreza 2.5 GT
Regular price $182.00Sale price $182.00 Regular priceUnit price per$182.00 -
In StockCobb Tuning Fuel Rails - Black Anodized
Fits: 08-21 STI
Regular price $300.00Sale price $300.00 Regular priceUnit price per$300.00 -
In StockCobb Tuning Fuel Rail Line Kit
Fits: 08-21 STI
Regular price $595.00Sale price $595.00 Regular priceUnit price per$595.00 -
In StockCobb Tuning Aluminum Alternator Cover - Wrinkle Black
Fits: 08-14 WRX, 08-21 STI
Only 5 leftRegular price $106.00Sale price $106.00 Regular priceUnit price per$106.00 -
In StockCobb Tuning SF Intake System Hardware Kit
Fits: 08-14 WRX, 08-21 STI, 09-13 Forester XT, 09-10 Impreza 2.5 GT
Only 11 leftRegular price $16.00Sale price $16.00 Regular priceUnit price per$16.00 -
![Cobb Tuning [08-14 WRX, 08-21 STI, 09-13 Forester XT] SF Short Ram Intake System - Blue](//jdmuscleusa.com/cdn/shop/files/preview_images/537912932-6ee69593d31119d3cd0638e4ac9bfdc0efe687c7f41b0e800a2afc196788de63-d_295x166_5337a7ec-ef37-47c9-b4c9-2e46f860d47e.jpg?v=1789295987&width=220)
In StockCobb Tuning SF Short Ram Intake System - Blue
Fits: 08-14 WRX, 08-21 STI, 09-13 Forester XT
Only 11 leftRegular price $340.00Sale price $340.00 Regular priceUnit price per$340.00
![IAG [02 - 14 WRX, 04 - 21 STI, 05 - 09 LGT, 04 - 08 FXT] V2 Timing Belt Guide | IAG - ENG - 5101BK - JDMuscleTiming Belt ComponentsIAG-ENG-5101BK](http://jdmuscleusa.com/cdn/shop/products/iag-02-14-wrx-04-21-sti-05-09-lgt-04-08-fxt-v2-timing-belt-guide-iag-eng-5101bk-9536642.jpg?v=1770331224&width=220)
![IAG [02 - 14 WRX, 04 - 21 STI, 05 - 09 LGT, 04 - 08 FXT] V2 Timing Belt Guide | IAG - ENG - 5101BK - JDMuscleTiming Belt ComponentsIAG-ENG-5101BK](http://jdmuscleusa.com/cdn/shop/products/iag-02-14-wrx-04-21-sti-05-09-lgt-04-08-fxt-v2-timing-belt-guide-iag-eng-5101bk-6320311.jpg?v=1770331224&width=220)
![Cobb [11 - 14 WRX/STI] 3 - inch Cat Back Exhaust - JDMuscleCat Back Exhaust Systemcobb515122](http://jdmuscleusa.com/cdn/shop/products/cobb-11-14-wrxsti-3-inch-cat-back-exhaust-6018102.jpg?v=1770336324&width=220)
![Cobb [11 - 14 WRX/STI] 3 - inch Cat Back Exhaust - JDMuscleCat Back Exhaust Systemcobb515122](http://jdmuscleusa.com/cdn/shop/products/cobb-11-14-wrxsti-3-inch-cat-back-exhaust-7069891.jpg?v=1770336324&width=220)
![Cobb [08 - 14 STI] Front Mount Intercooler Hot Pipes - JDMuscleIntercooler Piping Kitscobb715500-H](http://jdmuscleusa.com/cdn/shop/products/cobb-08-14-sti-front-mount-intercooler-hot-pipes-9045978.jpg?v=1770336328&width=220)
![Cobb [08 - 21 STI/WRX, 09 - 10 Impreza 2.5GT] Coolant Overflow Tank - JDMuscleOverflow / Expansion Tankscobb800650](http://jdmuscleusa.com/cdn/shop/products/cobb-08-21-stiwrx-09-10-impreza-25gt-coolant-overflow-tank-5219125.jpg?v=1775590688&width=220)
![Cobb [08 - 21 STI/WRX, 09 - 10 Impreza 2.5GT] Coolant Overflow Tank - JDMuscleOverflow / Expansion Tankscobb800650](http://jdmuscleusa.com/cdn/shop/products/cobb-08-21-stiwrx-09-10-impreza-25gt-coolant-overflow-tank-7229131.jpg?v=1775590688&width=220)
![Cobb Tuning [08-14 WRX, 08-21 STI, 09-13 Forester XT] SF Short Ram Intake System - Blue](http://jdmuscleusa.com/cdn/shop/files/preview_images/537912932-6ee69593d31119d3cd0638e4ac9bfdc0efe687c7f41b0e800a2afc196788de63-d_295x166_5337a7ec-ef37-47c9-b4c9-2e46f860d47e.jpg?v=1789295987&width=220)