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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![Subaru OEM Intake Manifold to TGV Gasket [Most Subaru Models] | 14075AA161](//jdmuscleusa.com/cdn/shop/products/SUB14075AA161.jpg?v=1669935312&width=220)
Subaru OEM Intake Manifold to TGV Gasket | 14075AA161
Fits: Most Subaru Models
Regular price $9.88Sale price $9.88 Regular priceUnit price per$9.88 -
Up to $189 off
In StockTomei 11-21 WRX/STI FULL Titanium Muffler Expreme Ti Type-D
Only 5 leftRegular price $1,701.00Sale price $1,701.00 Regular priceUnit price per$1,890.00 -
![Cobb [08 - 14 WRX, 08 - 21 STI, 05 - 09 LGT] HIGH FLOW FUEL PUMP - JDMuscleFuel Pumps and AccessoriesCBT-315450](//jdmuscleusa.com/cdn/shop/files/cobb-08-14-wrx-08-21-sti-05-09-lgt-high-flow-fuel-pump-5483990.jpg?v=1770327073&width=220)
![Cobb [08 - 14 WRX, 08 - 21 STI, 05 - 09 LGT] HIGH FLOW FUEL PUMP - JDMuscleFuel Pumps and AccessoriesCBT-315450](//jdmuscleusa.com/cdn/shop/files/cobb-08-14-wrx-08-21-sti-05-09-lgt-high-flow-fuel-pump-3671235.jpg?v=1770327073&width=220)
In StockCobb HIGH FLOW FUEL PUMP
Fits: 08-14 WRX, 08-21 STI, 05-09 LGT
Regular price $193.00Sale price $193.00 Regular priceUnit price per$193.00 -
![GrimmSpeed [02 - 14 WRX, 04 - 21 STI, 05 - 12 LGT, 04 - 13 FXT] Intake Manifold to TGV Gasket Pair | 023001 - JDMuscleIntake System Gasketgrm023001](//jdmuscleusa.com/cdn/shop/files/grimmspeed-02-14-wrx-04-21-sti-05-12-lgt-04-13-fxt-intake-manifold-to-tgv-gasket-pair-023001-4508665.jpg?v=1770327638&width=220)
GrimmSpeed Intake Manifold to TGV Gasket Pair | 023001
Fits: 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT
Regular price $29.00Sale price $29.00 Regular priceUnit price per$29.00 -
![Mishimoto [11 - 14 WRX, 11 - 21 STI] Ignition Coil Set of 4 | MMIG - STI - 1104 - JDMuscleCoil PacksmisMMIG-STI-1104](//jdmuscleusa.com/cdn/shop/products/mishimoto-11-14-wrx-11-21-sti-ignition-coil-set-of-4-mmig-sti-1104-4428028.png?v=1770331757&width=220)
![Mishimoto [11 - 14 WRX, 11 - 21 STI] Ignition Coil Set of 4 | MMIG - STI - 1104 - JDMuscleCoil PacksmisMMIG-STI-1104](//jdmuscleusa.com/cdn/shop/products/mishimoto-11-14-wrx-11-21-sti-ignition-coil-set-of-4-mmig-sti-1104-4586879.png?v=1770331757&width=220)
Up to $21.05 off
In StockMishimoto Ignition Coil Set of 4 | MMIG-STI-1104
Fits: 11-14 WRX, 11-21 STI
Only 11 leftRegular price $214.95Sale price $214.95 Regular priceUnit price per$236.00 -
Subaru OEM Donut Gasket Subaru Turbo Models | 44022AA123
Regular price $24.70Sale price $24.70 Regular priceUnit price per$24.70 -
![COBB [02 - 07 WRX, 04 - 21 STI, 04 - 08 FXT] Throttle Body Coupler - Black | 712455 - JDMuscleThrottle Body Hosescobb712455](//jdmuscleusa.com/cdn/shop/products/cobb-02-07-wrx-04-21-sti-04-08-fxt-throttle-body-coupler-black-712455-6973469.jpg?v=1770336382&width=220)
In StockCOBB Throttle Body Coupler-Black
Fits: 02-07 WRX, 04-21 STI, 04-08 FXT
Only 19 leftRegular price $58.00Sale price $58.00 Regular priceUnit price per$58.00 -
Up to $20 off
In StockRadium Engineering Fuel Rail Plumbing Kit - Parallel
Fits: 04-21 STI
Only 8 leftRegular price $379.95Sale price $379.95 Regular priceUnit price per$399.95 -
Up to $23.55 off
In StockPERRIN Performance Fender Shrouds - Neon Yellow
Fits: 11-14 WRX, 08-14 STI
Only 7 leftRegular price $133.45Sale price $133.45 Regular priceUnit price per$157.00 -
Up to $4 off
In StockRadium Engineering DIY Fuel Pump Wiring Kit - Universal
Regular price $75.95Sale price $75.95 Regular priceUnit price per$79.95 -
Up to $31.99 off
In StockEagle Connecting Rods
Fits: 02-14 WRX, 04-21 STI
Only 6 leftRegular price $375.00Sale price $375.00 Regular priceUnit price per$406.99 -
Up to $98.98 off
In StockTurboXS RFL Blow Off Valve
Fits: 02-07 WRX, 04-21 STI
Regular price $226.00Sale price $226.00 Regular priceUnit price per$324.98 -
![GrimmSpeed [02-14 WRX / 04-21 STI] Alternator Cover Black | 099012](//jdmuscleusa.com/cdn/shop/products/grimmspeed-black-alternator-cover-subaru-wrx-sti-forester-xt-outback-xt-099012-alternator-covers-grimmspeed-grm099012.jpg?v=1625804898&width=220)
![GrimmSpeed [02-14 WRX / 04-21 STI] Alternator Cover Black | 099012](//jdmuscleusa.com/cdn/shop/products/grimmspeed-black-alternator-cover-subaru-wrx-sti-forester-xt-outback-xt-099012-alternator-covers-grimmspeed-grm099012-2.jpg?v=1625804898&width=220)
GrimmSpeed Alternator Cover Black | 099012
Fits: 02-14 WRX / 04-21 STI
Regular price $135.00Sale price $135.00 Regular priceUnit price per$135.00 -
![GrimmSpeed [02-07 WRX / 04-21 STI] Intercooler Y-Pipe Gaskets | 020024](//jdmuscleusa.com/cdn/shop/products/grimmspeed-top-mount-intercooler-y-pipe-gasket-pair-subaru-wrx-2002-2007-sti-2004-2020-020024-gaskets-grimmspeed-grm020024.jpg?v=1614517939&width=220)
![GrimmSpeed [02-07 WRX / 04-21 STI] Intercooler Y-Pipe Gaskets | 020024](//jdmuscleusa.com/cdn/shop/products/grimmspeed-top-mount-intercooler-y-pipe-gasket-pair-subaru-wrx-2002-2007-sti-2004-2020-020024-gaskets-grimmspeed-grm020024-2.jpg?v=1614675534&width=220)
GrimmSpeed Intercooler Y-Pipe Gaskets | 020024
Fits: 02-07 WRX / 04-21 STI
Regular price $33.00Sale price $33.00 Regular priceUnit price per$33.00 -
![GrimmSpeed [02-14 WRX, 04-21 STI] TGV to Engine Gasket Pair | 032001](//jdmuscleusa.com/cdn/shop/products/grimmspeed-tumbler-to-engine-gaskets-for-subaru-gasket-032001-exhaust-gaskets-and-hardware-grimmspeed-grmgasket-032001.jpg?v=1614517838&width=220)
GrimmSpeed TGV to Engine Gasket Pair | 032001
Fits: 02-14 WRX, 04-21 STI
Regular price $29.00Sale price $29.00 Regular priceUnit price per$29.00 -
![Invidia [11-14 WRX Hatch / 08-14 STI Hatch] Gemini R400 SS Tip Cat Back Exhaust | HS08ST5GM4SS](//jdmuscleusa.com/cdn/shop/products/invidia-gemini-r400-ss-tip-cat-back-exhaust-subaru-wrx-2011-2014-hatch-sti-2008-2014-hatch-hs08st5gm4ss-cat-back-exhaust-system-invidia-invhs08st5gm4ss.jpg?v=1614516966&width=220)
Up to $697.72 off
In StockInvidia Gemini R400 SS Tip Cat Back Exhaust
Fits: 11-14 WRX Hatch, 08-14 STI Hatch
Only 5 leftRegular price $1,535.00Sale price $1,535.00 Regular priceUnit price per$2,232.72
![Subaru OEM Intake Manifold to TGV Gasket [Most Subaru Models] | 14075AA161](http://jdmuscleusa.com/cdn/shop/products/SUB14075AA161.jpg?v=1669935312&width=220)
![Cobb [08 - 14 WRX, 08 - 21 STI, 05 - 09 LGT] HIGH FLOW FUEL PUMP - JDMuscleFuel Pumps and AccessoriesCBT-315450](http://jdmuscleusa.com/cdn/shop/files/cobb-08-14-wrx-08-21-sti-05-09-lgt-high-flow-fuel-pump-5483990.jpg?v=1770327073&width=220)
![Cobb [08 - 14 WRX, 08 - 21 STI, 05 - 09 LGT] HIGH FLOW FUEL PUMP - JDMuscleFuel Pumps and AccessoriesCBT-315450](http://jdmuscleusa.com/cdn/shop/files/cobb-08-14-wrx-08-21-sti-05-09-lgt-high-flow-fuel-pump-3671235.jpg?v=1770327073&width=220)
![GrimmSpeed [02 - 14 WRX, 04 - 21 STI, 05 - 12 LGT, 04 - 13 FXT] Intake Manifold to TGV Gasket Pair | 023001 - JDMuscleIntake System Gasketgrm023001](http://jdmuscleusa.com/cdn/shop/files/grimmspeed-02-14-wrx-04-21-sti-05-12-lgt-04-13-fxt-intake-manifold-to-tgv-gasket-pair-023001-4508665.jpg?v=1770327638&width=220)
![Mishimoto [11 - 14 WRX, 11 - 21 STI] Ignition Coil Set of 4 | MMIG - STI - 1104 - JDMuscleCoil PacksmisMMIG-STI-1104](http://jdmuscleusa.com/cdn/shop/products/mishimoto-11-14-wrx-11-21-sti-ignition-coil-set-of-4-mmig-sti-1104-4428028.png?v=1770331757&width=220)
![Mishimoto [11 - 14 WRX, 11 - 21 STI] Ignition Coil Set of 4 | MMIG - STI - 1104 - JDMuscleCoil PacksmisMMIG-STI-1104](http://jdmuscleusa.com/cdn/shop/products/mishimoto-11-14-wrx-11-21-sti-ignition-coil-set-of-4-mmig-sti-1104-4586879.png?v=1770331757&width=220)
![COBB [02 - 07 WRX, 04 - 21 STI, 04 - 08 FXT] Throttle Body Coupler - Black | 712455 - JDMuscleThrottle Body Hosescobb712455](http://jdmuscleusa.com/cdn/shop/products/cobb-02-07-wrx-04-21-sti-04-08-fxt-throttle-body-coupler-black-712455-6973469.jpg?v=1770336382&width=220)
![GrimmSpeed [02-14 WRX / 04-21 STI] Alternator Cover Black | 099012](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-black-alternator-cover-subaru-wrx-sti-forester-xt-outback-xt-099012-alternator-covers-grimmspeed-grm099012.jpg?v=1625804898&width=220)
![GrimmSpeed [02-14 WRX / 04-21 STI] Alternator Cover Black | 099012](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-black-alternator-cover-subaru-wrx-sti-forester-xt-outback-xt-099012-alternator-covers-grimmspeed-grm099012-2.jpg?v=1625804898&width=220)
![GrimmSpeed [02-07 WRX / 04-21 STI] Intercooler Y-Pipe Gaskets | 020024](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-top-mount-intercooler-y-pipe-gasket-pair-subaru-wrx-2002-2007-sti-2004-2020-020024-gaskets-grimmspeed-grm020024.jpg?v=1614517939&width=220)
![GrimmSpeed [02-07 WRX / 04-21 STI] Intercooler Y-Pipe Gaskets | 020024](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-top-mount-intercooler-y-pipe-gasket-pair-subaru-wrx-2002-2007-sti-2004-2020-020024-gaskets-grimmspeed-grm020024-2.jpg?v=1614675534&width=220)
![GrimmSpeed [02-14 WRX, 04-21 STI] TGV to Engine Gasket Pair | 032001](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-tumbler-to-engine-gaskets-for-subaru-gasket-032001-exhaust-gaskets-and-hardware-grimmspeed-grmgasket-032001.jpg?v=1614517838&width=220)
![Invidia [11-14 WRX Hatch / 08-14 STI Hatch] Gemini R400 SS Tip Cat Back Exhaust | HS08ST5GM4SS](http://jdmuscleusa.com/cdn/shop/products/invidia-gemini-r400-ss-tip-cat-back-exhaust-subaru-wrx-2011-2014-hatch-sti-2008-2014-hatch-hs08st5gm4ss-cat-back-exhaust-system-invidia-invhs08st5gm4ss.jpg?v=1614516966&width=220)