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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IAG Black Racing Timing Belt
Fits: 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT
Regular price $229.99Sale price $229.99 Regular priceUnit price per$229.99 -
Turbo XS 08-21 STI 20G Turbocharger | TU-EJ-TXS400
Regular price $1,319.20Sale price $1,319.20 Regular priceUnit price per$1,319.20 -
![IAG Performance [02 - 14 WRX, 04 - 21 STI , 05 - 12 LGT ,04 - 13 FXT] 3mm Thick Phenolic Spacers | IAG - AFD - 3103 - JDMusclePhenolic Thermal Intake Manifold SpacersIAG-AFD-3103](//jdmuscleusa.com/cdn/shop/files/iag-performance-02-14-wrx-04-21-sti-05-12-lgt-04-13-fxt-3mm-thick-phenolic-spacers-iag-afd-3103-7120303.jpg?v=1770327865&width=220)
IAG 3mm Thick Phenolic Spacers
Fits: 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT
Regular price $69.99Sale price $69.99 Regular priceUnit price per$69.99 -
IAG Performance 3 Inch Aluminum MAF Mounting Flange
Fits: 08-14 WRX, 08-21 STI
Regular price $43.99Sale price $43.99 Regular priceUnit price per$43.99 -
IAG Performance V3 Street Series Air / Oil Separator | AOS Replacement Line / Hardware Kit
Fits: 08-14 WRX, 08-21 STI
Regular price $239.99Sale price $239.99 Regular priceUnit price per$239.99 -
IAG Performance V3 Top Feed Fuel Rails Red
Fits: 02-14 WRX, 07-21 STI, 08-12 LGT, 06-13 FXT
Regular price $219.99Sale price $219.99 Regular priceUnit price per$219.99 -
IAG Performance V3 Top Feed Fuel Rails Gold
Fits: 02-14 WRX, 07-21 STI, 08-12 LGT, 06-13 FXT
Regular price $219.99Sale price $219.99 Regular priceUnit price per$219.99 -
Kartboy 02-14 WRX / 04-21 STI / 05-09 Legacy / 03-13 Forester Aluminum Crank Pulley V2 | KB-050-EJ-V2
Regular price $100.00Sale price $100.00 Regular priceUnit price per$100.00 -
IAG Black Timing Belt Kit w/ OEM Tensioner / Idlers and IAG Guide
Fits: 02-14 WRX, 04-21 STI, 05-12 LGT, 04-13 FXT
Regular price $599.99Sale price $599.99 Regular priceUnit price per$599.99 -
Subaru OEM Serpentine Belt 2010-21 STI | 809218460
Regular price $31.25Sale price $31.25 Regular priceUnit price per$31.25 -
Subaru OEM Outer Middle Timing Cover Most Turbo Subaru Models | 13570AA045
Regular price $38.23Sale price $38.23 Regular priceUnit price per$38.23 -
IAG Performance Replacement Blow Off Valve Elbow Silver
Fits: 02-07 WRX, 04-21 STI
Regular price $64.99Sale price $64.99 Regular priceUnit price per$64.99 -
Subaru OEM Oil Return Hose EJ25 Turbo Models | 807515712
Regular price $12.92Sale price $12.92 Regular priceUnit price per$12.92 -
Up to $19.05 off
In StockMishimoto 02-07 WRX / 04-21 STI Aluminum Coolant Expansion Tank Black | MMRT-WRX-01EBK
Only 10 leftRegular price $188.95Sale price $188.95 Regular priceUnit price per$208.00 -
iBR FLX01 - Upgrade Kit | 3 Pin and 5 Pin Harnesses
Regular price $399.99Sale price $399.99 Regular priceUnit price per$399.99 -
COBB EJ TGV Shaft Seal Kit
Fits: 08-21 STI , 08-14 WRX , 09-13 FXT , 07-12 LGT
Regular price $84.00Sale price $84.00 Regular priceUnit price per$84.00
![IAG Performance [02 - 14 WRX, 04 - 21 STI , 05 - 12 LGT ,04 - 13 FXT] 3mm Thick Phenolic Spacers | IAG - AFD - 3103 - JDMusclePhenolic Thermal Intake Manifold SpacersIAG-AFD-3103](http://jdmuscleusa.com/cdn/shop/files/iag-performance-02-14-wrx-04-21-sti-05-12-lgt-04-13-fxt-3mm-thick-phenolic-spacers-iag-afd-3103-7120303.jpg?v=1770327865&width=220)
