Optimize your Subaru STI 2004-2007 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.
Subaru STI 2004-2007 Engine Parts
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GrimmSpeed WRX/STI/LGT/FXT 3-Bolt Manifold to Up Pipe Gasket | 034001
Regular price $22.00Sale price $22.00 Regular priceUnit price per$22.00 -
GrimmSpeed Head Gasket Set - EJ25 SAVCS STI / WRX / LGT 2004-2014 | 12400X
Regular price $203.00Sale price $203.00 Regular priceUnit price per$203.00 -
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 -
![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 [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 -
GrimmSpeed Bolt Style Clear Zinc Oil Cap Most Subaru Models | 120014C
Regular price $84.00Sale price $84.00 Regular priceUnit price per$84.00 -
Up to $34.05 off
In StockMishimoto Medium Bar and Plate Dual Pass Oil Cooler - Universal
Only 1 leftRegular price $340.95Sale price $340.95 Regular priceUnit price per$375.00 -
Up to $18.05 off
In StockMishimoto 12 Inch Race Line High-Flow Electric Fan - Universal
Only 9 leftRegular price From $151.51Sale price From $151.51 Regular priceUnit price per$0.00 -
Up to $48.05 off
In StockMishimoto 19 Row X-Line Oil Cooler Kit - Universal
Only 7 leftRegular price $482.95Sale price $482.95 Regular priceUnit price per$531.00 -
Up to $24.05 off
In StockMishimoto Gold Z Line Intercooler - Universal
Only 2 leftRegular price $241.95Sale price $241.95 Regular priceUnit price per$266.00 -
Up to $20.86 offMishimoto Performance Air Intake Kit w/ Airbox Polished WRX/STI 2002-2007
Regular price $354.95Sale price $354.95 Regular priceUnit price per$375.81 -
Up to $26.23 offMishimoto Performance Air Intake Kit Polished WRX/STI 2002-2007
Regular price $215.95Sale price $215.95 Regular priceUnit price per$242.18 -
Up to $4.05 off
In StockMishimoto Straight Coupler with 1/8NPT Bung - Universal
Only 6 leftRegular price $39.95Sale price $39.95 Regular priceUnit price per$44.00 -
Up to $54.05 off
In StockMishimoto Thermostatic 19 Row Oil Cooler Kit - Universal
Only 4 leftRegular price $539.95Sale price $539.95 Regular priceUnit price per$594.00
![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 [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)
