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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GrimmSpeed Top Mount Intercooler Splitter
Fits: 08-14 STI
Regular price $337.00Sale price $337.00 Regular priceUnit price per$337.00 -
Grimmspeed 11-21 WRX Sedan / STI Sedan Resonated Cat Back Exhaust | 070033
Regular price $1,816.00Sale price $1,816.00 Regular priceUnit price per$1,816.00 -
![GrimmSpeed [02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT] Phenolic Thermal Spacer 8mm | 019001](//jdmuscleusa.com/cdn/shop/products/grimmspeed-3x-thick-8mm-phenolic-spacer-wrx-sti-legacy-gt-forester-xt-019001-phenolic-thermal-intake-manifold-spacers-grimmspeed-grm019001.jpg?v=1614517849&width=220)
![GrimmSpeed [02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT] Phenolic Thermal Spacer 8mm | 019001](//jdmuscleusa.com/cdn/shop/files/grimmspeed-phenolic-thermal-spacer-8mm-2002-2014-wrx-2004-2021-sti-2005-2012-lgt-2004-2013-fxt-019001-780723_500x500_ef3883b7-1e66-4832-af53-12f192e8f8ad.jpg?v=1688750773&width=220)
GrimmSpeed Phenolic Thermal Spacer 8mm | 019001
Fits: 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT
Regular price $94.00Sale price $94.00 Regular priceUnit price per$94.00 -
In StockGrimmSpeed 08-14 WRX/STI Hood Struts | 097029
Only 2 leftRegular price $186.00Sale price $186.00 Regular priceUnit price per$186.00 -
GrimmSpeed Bolt Style Clear Zinc Oil Cap Most Subaru Models | 120014C
Regular price $84.00Sale price $84.00 Regular priceUnit price per$84.00 -
In StockInjector Dymanics Fuel Injector PnP Adapter USCAR to EV1 - Universal
Regular price $11.55Sale price $11.55 Regular priceUnit price per$11.55 -
In StockInjector Dynamics Denso EV1 PnP Injector Adapter - Universal
Only 16 leftRegular price $17.33Sale price $17.33 Regular priceUnit price per$17.33 -
In StockInjector Dynamics Denso OBD2 PnP Injector Adapter - Universal
Only 5 leftRegular price $17.33Sale price $17.33 Regular priceUnit price per$17.33 -
In StockInjector Dynamics ID-F750 Performance Fuel Filter - Universal
Only 12 leftRegular price $346.50Sale price $346.50 Regular priceUnit price per$346.50 -
Up to $869.80 off
In StockInvidia Q300 Stainless Steel Tip Cat Back Exhaust STI 2008-2014 / WRX 2011-2014 Hatchback | HS08STIG3S
Only 6 leftRegular price $1,611.00Sale price $1,611.00 Regular priceUnit price per$2,480.80 -
Up to $926.40 off
In StockInvidia Q300 Titanium Tip Cat Back Exhaust STI 2008-2014 / WRX 2011-2014 Hatchback | HS08STIG3T
Only 7 leftRegular price $1,714.00Sale price $1,714.00 Regular priceUnit price per$2,640.40 -
Up to $557 offInvidia Full Titanium Cat Back Exhaust WRX/STI 2008-2014 Sedan | HS08SW4TRG
Regular price $1,031.00Sale price $1,031.00 Regular priceUnit price per$1,588.00 -
Up to $978 offInvidia R400 Gemini Quad Cat Back Exhaust Full Titanium WRX/STI 2011-2014 Sedan | HS11STI5TG4ST
Regular price $1,810.00Sale price $1,810.00 Regular priceUnit price per$2,788.00 -
Up to $636 off
In StockInvidia Dual N1 Single Layer SS Tipped Cat Back Exhaust STI 2008-2014 / WRX 2011-2014 Hatchback | HS08STIGTP
Only 7 leftRegular price $1,177.00Sale price $1,177.00 Regular priceUnit price per$1,813.00 -
Up to $10.80 off
In StockPerrin 08-21 WRX/STI / 05-09 LGT / 13-17 Crosstrek / 14-15 FXT Panel Filter | PSP-INT-110
Only 9 leftRegular price $61.20Sale price $61.20 Regular priceUnit price per$72.00 -
Up to $114.40 offPerrin Air Oil Separator Black w/ FMIC | PSP-ENG-607BK
Fits: 02-14 WRX, 04-21 STI, 05-09 LGT
Regular price $457.60Sale price $457.60 Regular priceUnit price per$572.00
![GrimmSpeed [02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT] Phenolic Thermal Spacer 8mm | 019001](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-3x-thick-8mm-phenolic-spacer-wrx-sti-legacy-gt-forester-xt-019001-phenolic-thermal-intake-manifold-spacers-grimmspeed-grm019001.jpg?v=1614517849&width=220)
![GrimmSpeed [02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT] Phenolic Thermal Spacer 8mm | 019001](http://jdmuscleusa.com/cdn/shop/files/grimmspeed-phenolic-thermal-spacer-8mm-2002-2014-wrx-2004-2021-sti-2005-2012-lgt-2004-2013-fxt-019001-780723_500x500_ef3883b7-1e66-4832-af53-12f192e8f8ad.jpg?v=1688750773&width=220)
