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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Turbosmart WG45 Hyper-Gate External Wastegate 45hp 35psi Black - Universal
Regular price $498.14Sale price $498.14 Regular priceUnit price per$485.99 -
Up to $15.26 offTurbosmart WG50 Pro-Gate Wastegate 50 Lite 35psi Blue - Universal
Regular price $493.49Sale price $493.49 Regular priceUnit price per$508.75 -
Turbosmart WG50 Pro-Gate Wastegate 50 Lite 35psi Black - Universal
Regular price $562.49Sale price $562.49 Regular priceUnit price per$508.75 -
Up to $8.30 offTurbosmart WG38 Ultragate 38 Wastegate 14psi Blue - Universal
Regular price $268.44Sale price $268.44 Regular priceUnit price per$276.74 -
Turbosmart WG38 Ultragate 38 Wastegate 14psi Black - Universal
Regular price $276.74Sale price $276.74 Regular priceUnit price per$276.74 -
Up to $21.20 off
In StockTurbosmart IWG75 150mm Rod 14 PSI Black Internal Wastegate Actuator - Universal
Only 5 leftRegular price $190.79Sale price $190.79 Regular priceUnit price per$211.99 -
Up to $40 off
In StockTurbosmart Comp-Gate40 External Wastegate - Universal
Only 15 leftRegular price From $314.95Sale price From $314.95 Regular priceUnit price per$349.94 -
GrimmSpeed Pair Exhaust Manifold to Crosspipe Gasket - Subaru Turbo | 025001
Regular price $19.00Sale price $19.00 Regular priceUnit price per$19.00 -
GrimmSpeed 2X Thick Exhaust Manifold to Crosspipe Gasket - Subaru EJ Turbo | 077001
Regular price $27.00Sale price $27.00 Regular priceUnit price per$27.00 -
Grimmspeed 44/45mm V-Band External Wastegate Block Off Plate - Subaru Universal | 008008
Regular price $97.00Sale price $97.00 Regular priceUnit price per$97.00 -
In StockGrimmspeed Radiator Shroud with Tool Tray - Red WRX/STI 2008-2014 | 096009
Only 5 leftRegular price $98.00Sale price $98.00 Regular priceUnit price per$98.00 -
GrimmSpeed 4-Bolt T4 Divided Turbo Manifold Gasket - Universal | 020029
Regular price $25.00Sale price $25.00 Regular priceUnit price per$25.00 -
![GrimmSpeed [02-14 WRX, 04-21 STI] Alternator Cover Red | 099017](//jdmuscleusa.com/cdn/shop/products/grimmspeed-red-alternator-cover-subaru-wrx-sti-forester-xt-outback-xt-099017-alternator-covers-grimmspeed-grm099017.jpg?v=1625804048&width=220)
![GrimmSpeed [02-14 WRX, 04-21 STI] Alternator Cover Red | 099017](//jdmuscleusa.com/cdn/shop/products/AlternatorCover-7__84781.1614103288.jpg?v=1625804098&width=220)
GrimmSpeed Alternator Cover Red | 099017
Fits: 02-14 WRX, 04-21 STI
Regular price $135.00Sale price $135.00 Regular priceUnit price per$135.00 -
GrimmSpeed 08-14 WRX/ 08-21 STI Gates Stretch Belt Pulley Adapter | 095012
Regular price $32.00Sale price $32.00 Regular priceUnit price per$32.00 -
![GrimmSpeed [Subaru Models inc. 02-14 WRX / 04-21 STI] Lightweight Crank Pulley | 095015BK](//jdmuscleusa.com/cdn/shop/products/grimmspeed-lightweight-crank-pulley-1998-2001-subaru-impreza-25rs-pulleys-grimmspeed-black-095015bk-2.jpg?v=1742240962&width=220)
GrimmSpeed Lightweight Crank Pulley | 095015BK
Fits: Subaru Models inc. 02-14 WRX / 04-21 STI
Regular price $189.00Sale price $189.00 Regular priceUnit price per$189.00 -
![GrimmSpeed [08-14 WRX/STI, 09-13 Forester XT] Cold Air Intake - Black | 060051](//jdmuscleusa.com/cdn/shop/products/grimmspeed-cold-air-intake-black-subaru-wrx-sti-2008-2014-forester-xt-2009-2013-060051-cold-air-intakes-grimmspeed-grm060051.jpg?v=1614518062&width=220)
![GrimmSpeed [08-14 WRX/STI, 09-13 Forester XT] Cold Air Intake - Black | 060051](//jdmuscleusa.com/cdn/shop/products/grimmspeed-cold-air-intake-black-subaru-wrx-sti-2008-2014-forester-xt-2009-2013-060051-cold-air-intakes-grimmspeed-grm060051-2.jpg?v=1614675598&width=220)
GrimmSpeed Cold Air Intake - Black | 060051
Fits: 08-14 WRX/STI, 09-13 Forester XT
Regular price $484.00Sale price $484.00 Regular priceUnit price per$484.00
![GrimmSpeed [02-14 WRX, 04-21 STI] Alternator Cover Red | 099017](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-red-alternator-cover-subaru-wrx-sti-forester-xt-outback-xt-099017-alternator-covers-grimmspeed-grm099017.jpg?v=1625804048&width=220)
![GrimmSpeed [02-14 WRX, 04-21 STI] Alternator Cover Red | 099017](http://jdmuscleusa.com/cdn/shop/products/AlternatorCover-7__84781.1614103288.jpg?v=1625804098&width=220)
![GrimmSpeed [Subaru Models inc. 02-14 WRX / 04-21 STI] Lightweight Crank Pulley | 095015BK](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-lightweight-crank-pulley-1998-2001-subaru-impreza-25rs-pulleys-grimmspeed-black-095015bk-2.jpg?v=1742240962&width=220)
![GrimmSpeed [08-14 WRX/STI, 09-13 Forester XT] Cold Air Intake - Black | 060051](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-cold-air-intake-black-subaru-wrx-sti-2008-2014-forester-xt-2009-2013-060051-cold-air-intakes-grimmspeed-grm060051.jpg?v=1614518062&width=220)
![GrimmSpeed [08-14 WRX/STI, 09-13 Forester XT] Cold Air Intake - Black | 060051](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-cold-air-intake-black-subaru-wrx-sti-2008-2014-forester-xt-2009-2013-060051-cold-air-intakes-grimmspeed-grm060051-2.jpg?v=1614675598&width=220)