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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Moroso Small Body Air Oil Separator Black Subaru STI 2008-2014 w/ FMIC
Regular price $321.89Sale price $321.89 Regular priceUnit price per$0.00 -
Moroso Air Oil Separator Small Body Black Subaru STI 2008-2014
Regular price $321.89Sale price $321.89 Regular priceUnit price per$0.00 -
Moroso Air Oil Separator Small Body Raw Finish Subaru STI 2008-2014
Regular price $314.17Sale price $314.17 Regular priceUnit price per$0.00 -
Moroso Small Body Air Oil Separator Raw Finish Subaru STI 2008-2014 w/ FMIC
Regular price $314.17Sale price $314.17 Regular priceUnit price per$0.00 -
HOA 3-Port Boost Control Solenoid - Universal
Regular price $94.99Sale price $94.99 Regular priceUnit price per$0.00 -
Up to $89 off
In StockTomei Expreme 06-14 WRX / 04-21 STI Twin Scroll Exhaust Manifold Large Piping | TB6010-SB01A
Only 5 leftRegular price $801.00Sale price $801.00 Regular priceUnit price per$890.00 -
Up to $158 off
In StockTomei 02-07 WRX / 04-21 STI ARMS MX7760 Turbo | TB401A-SB01A
Only 3 leftRegular price $1,422.00Sale price $1,422.00 Regular priceUnit price per$1,580.00 -
![Nameless Performance [WRX 11-14, STI 08-14] Track Pipe and No Muffler | SUTP08WRXHATCH-0MU-0TIP](//jdmuscleusa.com/cdn/shop/products/nameless-performance-track-pipe-sti-2008-2014-wrx-2011-2014-hatchback-axle-back-exhausts-nameless-performance-nam-rspd035.jpg?v=1614535536&width=220)
![Nameless Performance [WRX 11-14, STI 08-14] Track Pipe and No Muffler | SUTP08WRXHATCH-0MU-0TIP](//jdmuscleusa.com/cdn/shop/products/nameless-performance-track-pipe-sti-2008-2014-wrx-2011-2014-hatchback-axle-back-exhausts-nameless-performance-nam-rspd035-2.jpg?v=1614535537&width=220)
Nameless Performance Track Pipe and No Muffler
Fits: 11-14 WRX, 08-14 STI
Regular price $250.00Sale price $250.00 Regular priceUnit price per$0.00 -
Process West 02-14 WRX / 04-21 STI Engine Pulley Garnish Red | PWED02R
Regular price $78.65Sale price $78.65 Regular priceUnit price per$78.65 -
Process West Double W460 Pump Anti-Surge Fuel System WRX/STI 2008-2014
Regular price $1,776.00Sale price $1,776.00 Regular priceUnit price per$1,776.00 -
Process West 02-14 WRX / 07-21 STI Billet Fuel Rails Black | PRW-PWFR01B
Regular price $366.48Sale price $366.48 Regular priceUnit price per$366.48 -
Process West Single W460 Anti-Surge Fuel System WRX/STI 2008-2014
Regular price $1,397.00Sale price $1,397.00 Regular priceUnit price per$1,397.00 -
![Process West [08-14 STI] Front Mount Intercooler Kit Black | PWFMIC03B](//jdmuscleusa.com/cdn/shop/products/process-west-front-mount-intercooler-kit-black-subaru-sti-2008-2014-intercoolers-process-west-prw-pwfmic03b.jpg?v=1748375346&width=220)
Process West Front Mount Intercooler Kit Black | PWFMIC03B
Fits: 08-14 STI
Regular price $1,662.00Sale price $1,662.00 Regular priceUnit price per$1,662.00 -
![Process West [08-14 STI] Front Mount Intercooler Kit | PWFMIC03](//jdmuscleusa.com/cdn/shop/products/process-west-front-mount-intercooler-kit-subaru-sti-2008-2014-intercoolers-process-west-prw-pwfmic03.jpg?v=1748375350&width=220)
Process West Front Mount Intercooler Kit | PWFMIC03
Fits: 08-14 STI
Regular price $1,662.00Sale price $1,662.00 Regular priceUnit price per$1,662.00 -
Process West 08-21 STI Boost Soleniod Cover Red | PWED01R
Regular price $50.13Sale price $50.13 Regular priceUnit price per$50.13 -
Process West 08-21 STI Boost Soleniod Cover Black | PWED01B
Regular price $50.13Sale price $50.13 Regular priceUnit price per$50.13
![Nameless Performance [WRX 11-14, STI 08-14] Track Pipe and No Muffler | SUTP08WRXHATCH-0MU-0TIP](http://jdmuscleusa.com/cdn/shop/products/nameless-performance-track-pipe-sti-2008-2014-wrx-2011-2014-hatchback-axle-back-exhausts-nameless-performance-nam-rspd035.jpg?v=1614535536&width=220)
![Nameless Performance [WRX 11-14, STI 08-14] Track Pipe and No Muffler | SUTP08WRXHATCH-0MU-0TIP](http://jdmuscleusa.com/cdn/shop/products/nameless-performance-track-pipe-sti-2008-2014-wrx-2011-2014-hatchback-axle-back-exhausts-nameless-performance-nam-rspd035-2.jpg?v=1614535537&width=220)
![Process West [08-14 STI] Front Mount Intercooler Kit Black | PWFMIC03B](http://jdmuscleusa.com/cdn/shop/products/process-west-front-mount-intercooler-kit-black-subaru-sti-2008-2014-intercoolers-process-west-prw-pwfmic03b.jpg?v=1748375346&width=220)
![Process West [08-14 STI] Front Mount Intercooler Kit | PWFMIC03](http://jdmuscleusa.com/cdn/shop/products/process-west-front-mount-intercooler-kit-subaru-sti-2008-2014-intercoolers-process-west-prw-pwfmic03.jpg?v=1748375350&width=220)
