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 [08 - 21 WRX/STI, 05 - 09 LGT, 13 - 21 BRZ] 12MM Two Position Exhaust Hanger (Set of 4) | 070047 - JDMuscleExhaust Hangersgrm070047](//jdmuscleusa.com/cdn/shop/files/grimmspeed-08-21-wrxsti-05-09-lgt-13-21-brz-12mm-two-position-exhaust-hanger-set-of-4-070047-5797139.jpg?v=1770328223&width=220)
![Grimmspeed [08 - 21 WRX/STI, 05 - 09 LGT, 13 - 21 BRZ] 12MM Two Position Exhaust Hanger (Set of 4) | 070047 - JDMuscleExhaust Hangersgrm070047](//jdmuscleusa.com/cdn/shop/files/grimmspeed-08-21-wrxsti-05-09-lgt-13-21-brz-12mm-two-position-exhaust-hanger-set-of-4-070047-5761858.jpg?v=1770328224&width=220)
In StockGrimmspeed 12MM Two Position Exhaust Hanger (Set of 4) | 070047
Fits: 08-21 WRX/STI, 05-09 LGT, 13-21 BRZ
Only 1 leftRegular price $66.00Sale price $66.00 Regular priceUnit price per$66.00 -
Subaru OEM 1.3 Bar Radiator Cap Subaru All Models
Regular price $76.95Sale price $76.95 Regular priceUnit price per$76.95 -
Up to $13.20 off
In StockTial 44mm MVR External Wastegate - Universal
Regular price From $439.95Sale price From $439.95 Regular priceUnit price per$453.15 -
In StockGrimmSpeed Head to Exhaust Manifold Gaskets | Pair Suabru Turbo Models | 020001
Only 1 leftRegular price $40.00Sale price $40.00 Regular priceUnit price per$40.00 -
In StockGrimmSpeed Radiator Hose Kit Red
Fits: 08-14 WRX, 08-21 STI, 09-13 FXT
Only 9 leftRegular price $148.00Sale price $148.00 Regular priceUnit price per$148.00 -
![COBB Subaru Redline Fuse Cover [08 - 21 WRX/STI, 2019 S209, 2018 Type RA] - JDMuscleFuse Box CoversCOB844660](//jdmuscleusa.com/cdn/shop/products/cobb-subaru-redline-fuse-cover-08-21-wrxsti-2019-s209-2018-type-ra-2604858.jpg?v=1770330019&width=220)
![COBB Subaru Redline Fuse Cover [08 - 21 WRX/STI, 2019 S209, 2018 Type RA] - JDMuscleFuse Box CoversCOB844660](//jdmuscleusa.com/cdn/shop/products/cobb-subaru-redline-fuse-cover-08-21-wrxsti-2019-s209-2018-type-ra-6909168.jpg?v=1770330019&width=220)
In StockCOBB Redline Fuse Cover - Carbon Fiber/Gloss Black
Fits: 08-21 WRX/STI, 18 Type RA, 19 S209
Only 15 leftRegular price $207.00Sale price $207.00 Regular priceUnit price per$207.00 -
![Cobb [02 - 07 WRX, 04 - 21 STI] TD05H - 20G - 8 Turbocharger | E1120G - JDMuscleTurboscobbE1120G](//jdmuscleusa.com/cdn/shop/products/cobb-02-07-wrx-04-21-sti-td05h-20g-8-turbocharger-e1120g-6497348.jpg?v=1770336435&width=220)
![Cobb [02 - 07 WRX, 04 - 21 STI] TD05H - 20G - 8 Turbocharger | E1120G - JDMuscleTurboscobbE1120G](//jdmuscleusa.com/cdn/shop/products/cobb-02-07-wrx-04-21-sti-td05h-20g-8-turbocharger-e1120g-3149936.jpg?v=1770336436&width=220)
In StockCobb Tuning TD05H-20G-8 Turbocharger
Fits: 02-07 WRX, 04-21 STI
Regular price $1,470.00Sale price $1,470.00 Regular priceUnit price per$1,470.00 -
![COBB [08 - 21 STI] Fuel Pressure Regulator Kit | 315200 - JDMuscleFuel Pressure Regulatorscobb315200](//jdmuscleusa.com/cdn/shop/products/cobb-08-21-sti-fuel-pressure-regulator-kit-315200-9296320.jpg?v=1770336560&width=220)
![COBB [08 - 21 STI] Fuel Pressure Regulator Kit | 315200 - JDMuscleFuel Pressure Regulatorscobb315200](//jdmuscleusa.com/cdn/shop/products/cobb-08-21-sti-fuel-pressure-regulator-kit-315200-1913435.jpg?v=1770336560&width=220)
In StockCobb Tuning Fuel Pressure Regulator Kit
Fits: 08-21 STI
Regular price $410.00Sale price $410.00 Regular priceUnit price per$410.00 -
Up to $19.05 off
In StockMishimoto Aluminum Coolant Expansion Tank
Fits: 02-07 WRX, 04-21 STI
Only 9 leftRegular price $188.95Sale price $188.95 Regular priceUnit price per$208.00 -
Up to $27.20 off
In StockInvidia 3in Downpipe to 2.5in Exhaust Adapter
Fits: 08-21 WRX/STI, 04-10 Forester
Only 15 leftRegular price $61.00Sale price $61.00 Regular priceUnit price per$88.20 -
IAG Air / Oil Separator | AOS
Fits: 08-14 WRX & 08-21 STI
Regular price $499.99Sale price $499.99 Regular priceUnit price per$499.99 -
![COBB [08 - 14 WRX, 08 - 21 STI] Silicone Radiator Hose Kit Black - JDMuscleRadiator HosescobbB22400-BK](//jdmuscleusa.com/cdn/shop/files/cobb-08-14-wrx-08-21-sti-silicone-radiator-hose-kit-black-5125754.jpg?v=1770328028&width=220)
In StockCobb Tuning Silicone Radiator Hose Kit - Black
Fits: 08-14 WRX, 08-21 STI
Regular price $121.00Sale price $121.00 Regular priceUnit price per$121.00 -
![Mishimoto [08 - 21 WRX/STI] Aluminum Coolant Overflow Tank - Polished | MMRT - STI - 08 - JDMuscleOverflow Tanks / Coolant Tank and AccessoriesMIMMRT-STI-08](//jdmuscleusa.com/cdn/shop/products/mishimoto-08-21-wrxsti-aluminum-coolant-overflow-tank-polished-mmrt-sti-08-8574580.png?v=1770329185&width=220)
![Mishimoto [08 - 21 WRX/STI] Aluminum Coolant Overflow Tank - Polished | MMRT - STI - 08 - JDMuscleOverflow Tanks / Coolant Tank and AccessoriesMIMMRT-STI-08](//jdmuscleusa.com/cdn/shop/products/mishimoto-08-21-wrxsti-aluminum-coolant-overflow-tank-polished-mmrt-sti-08-6197822.png?v=1770329185&width=220)
Up to $23.05 off
In StockMishimoto Aluminum Coolant Overflow Tank - Polished
Fits: 08-21 WRX/STI
Only 4 leftRegular price $233.95Sale price $233.95 Regular priceUnit price per$257.00 -
Cobb Tuning 12mm Urethane Exhaust Hanger
Fits: 08-25* WRX, 08-21 STI, 22+ BRZ/GR86, 14-18 Forester XT, 05-09 Legacy GT/Spec B, 05-09 Outback XT, 09-10 Impreza 2.5GT
Regular price $25.00Sale price $25.00 Regular priceUnit price per$25.00 -
Forced Performance 04-21 Subaru STI/ 02-07 WRX FP GREEN 57S Turbocharger 84MM CH 8CM Turbine Housing External Wastegate Oil Line Included | 2029130
Regular price $7,374.00Sale price $7,374.00 Regular priceUnit price per$7,374.00 -
![AWE Tuning [11-25 WRX Sedan, 11-21 STI Sedan] Touring to Track Conversion Axle Back Exhaust - JDMuscleAxle Back Exhaustsawe3820-41004](//jdmuscleusa.com/cdn/shop/products/awe-tuning-11-25-wrx-sedan-11-21-sti-sedan-touring-to-track-conversion-axle-back-exhaust-8317351.jpg?v=1786515856&width=220)
Up to $20.79 off
In StockAWE Tuning Touring to Track Conversion Axle Back Exhaust
Fits: 11-25 WRX Sedan, 11-21 STI Sedan
Only 1 leftRegular price $395.00Sale price $395.00 Regular priceUnit price per$415.79
![Grimmspeed [08 - 21 WRX/STI, 05 - 09 LGT, 13 - 21 BRZ] 12MM Two Position Exhaust Hanger (Set of 4) | 070047 - JDMuscleExhaust Hangersgrm070047](http://jdmuscleusa.com/cdn/shop/files/grimmspeed-08-21-wrxsti-05-09-lgt-13-21-brz-12mm-two-position-exhaust-hanger-set-of-4-070047-5797139.jpg?v=1770328223&width=220)
![Grimmspeed [08 - 21 WRX/STI, 05 - 09 LGT, 13 - 21 BRZ] 12MM Two Position Exhaust Hanger (Set of 4) | 070047 - JDMuscleExhaust Hangersgrm070047](http://jdmuscleusa.com/cdn/shop/files/grimmspeed-08-21-wrxsti-05-09-lgt-13-21-brz-12mm-two-position-exhaust-hanger-set-of-4-070047-5761858.jpg?v=1770328224&width=220)
![COBB Subaru Redline Fuse Cover [08 - 21 WRX/STI, 2019 S209, 2018 Type RA] - JDMuscleFuse Box CoversCOB844660](http://jdmuscleusa.com/cdn/shop/products/cobb-subaru-redline-fuse-cover-08-21-wrxsti-2019-s209-2018-type-ra-2604858.jpg?v=1770330019&width=220)
![COBB Subaru Redline Fuse Cover [08 - 21 WRX/STI, 2019 S209, 2018 Type RA] - JDMuscleFuse Box CoversCOB844660](http://jdmuscleusa.com/cdn/shop/products/cobb-subaru-redline-fuse-cover-08-21-wrxsti-2019-s209-2018-type-ra-6909168.jpg?v=1770330019&width=220)
![Cobb [02 - 07 WRX, 04 - 21 STI] TD05H - 20G - 8 Turbocharger | E1120G - JDMuscleTurboscobbE1120G](http://jdmuscleusa.com/cdn/shop/products/cobb-02-07-wrx-04-21-sti-td05h-20g-8-turbocharger-e1120g-6497348.jpg?v=1770336435&width=220)
![Cobb [02 - 07 WRX, 04 - 21 STI] TD05H - 20G - 8 Turbocharger | E1120G - JDMuscleTurboscobbE1120G](http://jdmuscleusa.com/cdn/shop/products/cobb-02-07-wrx-04-21-sti-td05h-20g-8-turbocharger-e1120g-3149936.jpg?v=1770336436&width=220)
![COBB [08 - 21 STI] Fuel Pressure Regulator Kit | 315200 - JDMuscleFuel Pressure Regulatorscobb315200](http://jdmuscleusa.com/cdn/shop/products/cobb-08-21-sti-fuel-pressure-regulator-kit-315200-9296320.jpg?v=1770336560&width=220)
![COBB [08 - 21 STI] Fuel Pressure Regulator Kit | 315200 - JDMuscleFuel Pressure Regulatorscobb315200](http://jdmuscleusa.com/cdn/shop/products/cobb-08-21-sti-fuel-pressure-regulator-kit-315200-1913435.jpg?v=1770336560&width=220)
![COBB [08 - 14 WRX, 08 - 21 STI] Silicone Radiator Hose Kit Black - JDMuscleRadiator HosescobbB22400-BK](http://jdmuscleusa.com/cdn/shop/files/cobb-08-14-wrx-08-21-sti-silicone-radiator-hose-kit-black-5125754.jpg?v=1770328028&width=220)
![Mishimoto [08 - 21 WRX/STI] Aluminum Coolant Overflow Tank - Polished | MMRT - STI - 08 - JDMuscleOverflow Tanks / Coolant Tank and AccessoriesMIMMRT-STI-08](http://jdmuscleusa.com/cdn/shop/products/mishimoto-08-21-wrxsti-aluminum-coolant-overflow-tank-polished-mmrt-sti-08-8574580.png?v=1770329185&width=220)
![Mishimoto [08 - 21 WRX/STI] Aluminum Coolant Overflow Tank - Polished | MMRT - STI - 08 - JDMuscleOverflow Tanks / Coolant Tank and AccessoriesMIMMRT-STI-08](http://jdmuscleusa.com/cdn/shop/products/mishimoto-08-21-wrxsti-aluminum-coolant-overflow-tank-polished-mmrt-sti-08-6197822.png?v=1770329185&width=220)
![AWE Tuning [11-25 WRX Sedan, 11-21 STI Sedan] Touring to Track Conversion Axle Back Exhaust - JDMuscleAxle Back Exhaustsawe3820-41004](http://jdmuscleusa.com/cdn/shop/products/awe-tuning-11-25-wrx-sedan-11-21-sti-sedan-touring-to-track-conversion-axle-back-exhaust-8317351.jpg?v=1786515856&width=220)