Elevate the performance of your 2015-2021 Subaru WRX to exhilarating heights with our premium selection of high-quality engine parts. Unleash the full potential of your vehicle's powerplant by exploring our meticulously curated range of performance-enhancing components, designed to optimize every aspect of your driving experience. From turbochargers that deliver impressive horsepower gains to precision-engineered air intake systems that enhance airflow and responsiveness, our collection offers a comprehensive array of aftermarket upgrades to suit your specific performance goals. Our step-by-step installation tips ensure a seamless integration process, whether you're a seasoned auto enthusiast or a first-time DIYer, while our maintenance insights empower you to keep your upgraded engine running smoothly for years to come. Transform your Subaru WRX into a true powerhouse on the road with our premium engine parts, carefully selected to deliver unparalleled performance, efficiency, and driving satisfaction. Unlock the true potential of your WRX today and experience a driving experience like no other.
2015-2021 Subaru WRX Engine Parts
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![Cobb [15 - 21 WRX 6MT] Stage 2 Power Package Titanium - Resonated J - Pipe - JDMuscleEngine Package Dealscobb641XR4TI](//jdmuscleusa.com/cdn/shop/products/cobb-15-21-wrx-6mt-stage-2-power-package-titanium-resonated-j-pipe-6460131.jpg?v=1770336201&width=220)
![Cobb [15 - 21 WRX 6MT] Stage 2 Power Package Titanium - Resonated J - Pipe - JDMuscleEngine Package Dealscobb641XR4TI](//jdmuscleusa.com/cdn/shop/products/cobb-15-21-wrx-6mt-stage-2-power-package-titanium-resonated-j-pipe-8286755.jpg?v=1770336202&width=220)
Cobb Stage 2 Power Package Titanium - Resonated J-Pipe
Fits: 15-21 WRX 6MT
Regular price $3,525.00Sale price $3,525.00 Regular priceUnit price per$3,525.00 -
![Cobb [08 - 14 WRX, 08 - 21 STI] Flex Fuel + Fuel Upgrade Package - JDMuscleFlex FuelcobbSUB0FF0050](//jdmuscleusa.com/cdn/shop/products/cobb-08-14-wrx-08-21-sti-flex-fuel-fuel-upgrade-package-3039725.jpg?v=1775590818&width=220)
![Cobb [08 - 14 WRX, 08 - 21 STI] Flex Fuel + Fuel Upgrade Package - JDMuscleFlex FuelcobbSUB0FF0050](//jdmuscleusa.com/cdn/shop/products/cobb-08-14-wrx-08-21-sti-flex-fuel-fuel-upgrade-package-4485216.jpg?v=1775590818&width=220)
Cobb Flex Fuel + Fuel Upgrade Package
Fits: 08-14 WRX, 08-21 STI
Regular price $1,485.00Sale price $1,485.00 Regular priceUnit price per$1,485.00 -
JE Pistons Pro Seal 101.3mm Bore 1.0mm Thick MLS Head Gasket
Fits: 08+ WRX/STI
Regular price $190.43Sale price $190.43 Regular priceUnit price per$190.43 -
Up to $43.70 offTurbosmart Blue Plumb Back Blow Off Valve | 0205-1215
Fits: 02-07 WRX, 04-21 STI
Regular price $393.29Sale price $393.29 Regular priceUnit price per$436.99 -
![Torque Solution [02-07 WRX, 04-21 STI, 04-08 FXT] Turbo Inlet Hose - Red | TS-SU-463RD](//jdmuscleusa.com/cdn/shop/products/torque-solution-turbo-inlet-hose-red-02-07-subaru-wrx-04-19-sti-05-09-legacy-gt-04-13-ftx-turbo-inlet-hoses-and-pipes-torque-solution-tqsts-su-463rd.jpg?v=1614519038&width=220)
![Torque Solution [02-07 WRX, 04-21 STI, 04-08 FXT] Turbo Inlet Hose - Red | TS-SU-463RD](//jdmuscleusa.com/cdn/shop/files/torque-solution-turbo-inlet-hose-red-2002-2007-wrx-2004-2021-sti-2004-2008-forester-xt-ts-su-463rd-888855_557x375_55de504c-abb3-4765-8a6d-acff69a7991c.jpg?v=1689965451&width=220)
Up to $60.77 off
In StockTorque Solution Turbo Inlet Hose - Red | TS-SU-463RD
Fits: 02-07 WRX, 04-21 STI, 04-08 FXT
Only 3 leftRegular price $217.00Sale price $217.00 Regular priceUnit price per$277.77 -
Up to $43.70 offTurbosmart Black Plumb Back Blow Off Valve | 0205-1216
Fits: 02-07 WRX, 04-21 STI
Regular price $393.29Sale price $393.29 Regular priceUnit price per$436.99 -
Up to $28.10 off
In StockTurbosmart Vee-Port Blow Off Valve - Black | 0205-1136
Fits: 02-07 WRX, 04-21 STI
Only 3 leftRegular price $252.89Sale price $252.89 Regular priceUnit price per$280.99 -
Up to $43.10 offTurbosmart Blue Supersonic Blow Off Valve | 0205-1315
Fits: 02-07 WRX, 04-21 STI
Regular price $387.89Sale price $387.89 Regular priceUnit price per$430.99 -
![GrimmSpeed [02-14 WRX, 04-21 STI] Alternator Cover Red | 099017](//jdmuscleusa.com/cdn/shop/products/grimmspeed-red-alternator-cover-subaru-wrx-sti-forester-xt-outback-xt-099017-alternator-covers-grimmspeed-grm099017.jpg?v=1625804048&width=220)
![GrimmSpeed [02-14 WRX, 04-21 STI] Alternator Cover Red | 099017](//jdmuscleusa.com/cdn/shop/products/AlternatorCover-7__84781.1614103288.jpg?v=1625804098&width=220)
GrimmSpeed Alternator Cover Red | 099017
Fits: 02-14 WRX, 04-21 STI
Regular price $135.00Sale price $135.00 Regular priceUnit price per$135.00 -
![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 -
![Mishimoto [02-07 WRX, 04-21 STI, 04-08 FXT] Turbo Inlet Hose Blue | MMHOSE-SUB-IHBL](//jdmuscleusa.com/cdn/shop/products/mishimoto-blue-silicone-turbo-inlet-hose-subaru-wrx-2002-2007-sti-2004-2019-turbo-inlet-hoses-and-pipes-mishimoto-mmhose-sub-ihbl.jpg?v=1614515266&width=220)
![Mishimoto [02-07 WRX, 04-21 STI, 04-08 FXT] Turbo Inlet Hose Blue | MMHOSE-SUB-IHBL](//jdmuscleusa.com/cdn/shop/products/mishimoto-blue-silicone-turbo-inlet-hose-subaru-wrx-2002-2007-sti-2004-2019-turbo-inlet-hoses-and-pipes-mishimoto-mmhose-sub-ihbl-2.jpg?v=1614515267&width=220)
Up to $28.05 off
In StockMishimoto Turbo Inlet Hose Blue | MMHOSE-SUB-IHBL
Fits: 02-07 WRX, 04-21 STI, 04-08 FXT
Only 5 leftRegular price $276.95Sale price $276.95 Regular priceUnit price per$305.00 -
![Perrin Performance [15 - 21 Subaru WRX] CVT Transmission Oil Cooler Full Kit - JDMuscleOil Cooler / Transmission CoolerperPSP-OIL-200](//jdmuscleusa.com/cdn/shop/files/perrin-performance-15-21-subaru-wrx-cvt-transmission-oil-cooler-full-kit-3775511.jpg?v=1770318494&width=220)
![Perrin Performance [15 - 21 Subaru WRX] CVT Transmission Oil Cooler Full Kit - JDMuscleOil Cooler / Transmission CoolerperPSP-OIL-200](//jdmuscleusa.com/cdn/shop/files/perrin-performance-15-21-subaru-wrx-cvt-transmission-oil-cooler-full-kit-6933371.jpg?v=1770318494&width=220)
Up to $196.25 offPerrin Performance CVT Transmission Oil Cooler Full Kit
Fits: 15-21 Subaru WRX
Regular price $588.75Sale price $588.75 Regular priceUnit price per$785.00 -
![Perrin Performance [02 - 14 Subaru Impreza, 15 - 21 WRX, STI] Oil Cooler Tuner Kit - JDMuscleOil Cooler / Transmission CoolerperPSP-OIL-125](//jdmuscleusa.com/cdn/shop/files/perrin-performance-02-14-subaru-impreza-15-21-wrx-sti-oil-cooler-tuner-kit-9279167.jpg?v=1770322451&width=220)
![Perrin Performance [02 - 14 Subaru Impreza, 15 - 21 WRX, STI] Oil Cooler Tuner Kit - JDMuscleOil Cooler / Transmission CoolerperPSP-OIL-125](//jdmuscleusa.com/cdn/shop/files/perrin-performance-02-14-subaru-impreza-15-21-wrx-sti-oil-cooler-tuner-kit-9010308.jpg?v=1770322451&width=220)
Up to $147.25 offPerrin Performance Oil Cooler Tuner Kit
Fits: 02-14 Subaru Impreza, 15-21 WRX, STI
Regular price $441.75Sale price $441.75 Regular priceUnit price per$589.00 -
![Perrin Performance [15 - 21 Subaru WRX] Oil Cooler Tuner Kit - JDMuscleOil Cooler / Transmission CoolerperPSP-OIL-126](//jdmuscleusa.com/cdn/shop/files/perrin-performance-15-21-subaru-wrx-oil-cooler-tuner-kit-7003940.jpg?v=1770322452&width=220)
![Perrin Performance [15 - 21 Subaru WRX] Oil Cooler Tuner Kit - JDMuscleOil Cooler / Transmission CoolerperPSP-OIL-126](//jdmuscleusa.com/cdn/shop/files/perrin-performance-15-21-subaru-wrx-oil-cooler-tuner-kit-8045871.jpg?v=1770322452&width=220)
Up to $147.25 offPerrin Performance Oil Cooler Tuner Kit
Fits: 15-21 Subaru WRX
Regular price $441.75Sale price $441.75 Regular priceUnit price per$589.00 -
![TR [02 - 07 WRX, 04 - 21 STI] GTX3076 Turbo w/ Billet Wheel - JDMuscleTurbosTR-TS10461.3 bar](//jdmuscleusa.com/cdn/shop/products/tr-02-07-wrx-04-21-sti-gtx3076-turbo-w-billet-wheel-8387249.jpg?v=1770337995&width=220)
![TR [02 - 07 WRX, 04 - 21 STI] GTX3076 Turbo w/ Billet Wheel - JDMuscleTurbosTR-TS10461.3 bar](//jdmuscleusa.com/cdn/shop/products/tr-02-07-wrx-04-21-sti-gtx3076-turbo-w-billet-wheel-9918773.jpg?v=1770337995&width=220)
TR GTX3076 Turbo w/ Billet Wheel
Fits: 02-07 WRX, 04-21 STI
Regular price $2,470.00Sale price $2,470.00 Regular priceUnit price per$2,150.00 -
![IAG [15 - 21 WRX] Stage 1 FA20DIT Subaru Short Block for - JDMuscleShort BlocksIAG-ENG-1050](//jdmuscleusa.com/cdn/shop/products/iag-15-21-wrx-stage-1-fa20dit-subaru-short-block-for-7573168.jpg?v=1772964132&width=220)
![IAG [15 - 21 WRX] Stage 1 FA20DIT Subaru Short Block for - JDMuscleShort BlocksIAG-ENG-1050](//jdmuscleusa.com/cdn/shop/products/iag-15-21-wrx-stage-1-fa20dit-subaru-short-block-for-6273214.jpg?v=1772964132&width=220)
IAG Stage 1 FA20DIT Subaru Short Block for
Fits: 15-21 WRX
Regular price $4,199.99Sale price $4,199.99 Regular priceUnit price per$4,199.99
![Cobb [15 - 21 WRX 6MT] Stage 2 Power Package Titanium - Resonated J - Pipe - JDMuscleEngine Package Dealscobb641XR4TI](http://jdmuscleusa.com/cdn/shop/products/cobb-15-21-wrx-6mt-stage-2-power-package-titanium-resonated-j-pipe-6460131.jpg?v=1770336201&width=220)
![Cobb [15 - 21 WRX 6MT] Stage 2 Power Package Titanium - Resonated J - Pipe - JDMuscleEngine Package Dealscobb641XR4TI](http://jdmuscleusa.com/cdn/shop/products/cobb-15-21-wrx-6mt-stage-2-power-package-titanium-resonated-j-pipe-8286755.jpg?v=1770336202&width=220)
![Cobb [08 - 14 WRX, 08 - 21 STI] Flex Fuel + Fuel Upgrade Package - JDMuscleFlex FuelcobbSUB0FF0050](http://jdmuscleusa.com/cdn/shop/products/cobb-08-14-wrx-08-21-sti-flex-fuel-fuel-upgrade-package-3039725.jpg?v=1775590818&width=220)
![Cobb [08 - 14 WRX, 08 - 21 STI] Flex Fuel + Fuel Upgrade Package - JDMuscleFlex FuelcobbSUB0FF0050](http://jdmuscleusa.com/cdn/shop/products/cobb-08-14-wrx-08-21-sti-flex-fuel-fuel-upgrade-package-4485216.jpg?v=1775590818&width=220)
![Torque Solution [02-07 WRX, 04-21 STI, 04-08 FXT] Turbo Inlet Hose - Red | TS-SU-463RD](http://jdmuscleusa.com/cdn/shop/products/torque-solution-turbo-inlet-hose-red-02-07-subaru-wrx-04-19-sti-05-09-legacy-gt-04-13-ftx-turbo-inlet-hoses-and-pipes-torque-solution-tqsts-su-463rd.jpg?v=1614519038&width=220)
![Torque Solution [02-07 WRX, 04-21 STI, 04-08 FXT] Turbo Inlet Hose - Red | TS-SU-463RD](http://jdmuscleusa.com/cdn/shop/files/torque-solution-turbo-inlet-hose-red-2002-2007-wrx-2004-2021-sti-2004-2008-forester-xt-ts-su-463rd-888855_557x375_55de504c-abb3-4765-8a6d-acff69a7991c.jpg?v=1689965451&width=220)
![GrimmSpeed [02-14 WRX, 04-21 STI] Alternator Cover Red | 099017](http://jdmuscleusa.com/cdn/shop/products/grimmspeed-red-alternator-cover-subaru-wrx-sti-forester-xt-outback-xt-099017-alternator-covers-grimmspeed-grm099017.jpg?v=1625804048&width=220)
![GrimmSpeed [02-14 WRX, 04-21 STI] Alternator Cover Red | 099017](http://jdmuscleusa.com/cdn/shop/products/AlternatorCover-7__84781.1614103288.jpg?v=1625804098&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)
![Mishimoto [02-07 WRX, 04-21 STI, 04-08 FXT] Turbo Inlet Hose Blue | MMHOSE-SUB-IHBL](http://jdmuscleusa.com/cdn/shop/products/mishimoto-blue-silicone-turbo-inlet-hose-subaru-wrx-2002-2007-sti-2004-2019-turbo-inlet-hoses-and-pipes-mishimoto-mmhose-sub-ihbl.jpg?v=1614515266&width=220)
![Mishimoto [02-07 WRX, 04-21 STI, 04-08 FXT] Turbo Inlet Hose Blue | MMHOSE-SUB-IHBL](http://jdmuscleusa.com/cdn/shop/products/mishimoto-blue-silicone-turbo-inlet-hose-subaru-wrx-2002-2007-sti-2004-2019-turbo-inlet-hoses-and-pipes-mishimoto-mmhose-sub-ihbl-2.jpg?v=1614515267&width=220)
![Perrin Performance [15 - 21 Subaru WRX] CVT Transmission Oil Cooler Full Kit - JDMuscleOil Cooler / Transmission CoolerperPSP-OIL-200](http://jdmuscleusa.com/cdn/shop/files/perrin-performance-15-21-subaru-wrx-cvt-transmission-oil-cooler-full-kit-3775511.jpg?v=1770318494&width=220)
![Perrin Performance [15 - 21 Subaru WRX] CVT Transmission Oil Cooler Full Kit - JDMuscleOil Cooler / Transmission CoolerperPSP-OIL-200](http://jdmuscleusa.com/cdn/shop/files/perrin-performance-15-21-subaru-wrx-cvt-transmission-oil-cooler-full-kit-6933371.jpg?v=1770318494&width=220)
![Perrin Performance [02 - 14 Subaru Impreza, 15 - 21 WRX, STI] Oil Cooler Tuner Kit - JDMuscleOil Cooler / Transmission CoolerperPSP-OIL-125](http://jdmuscleusa.com/cdn/shop/files/perrin-performance-02-14-subaru-impreza-15-21-wrx-sti-oil-cooler-tuner-kit-9279167.jpg?v=1770322451&width=220)
![Perrin Performance [02 - 14 Subaru Impreza, 15 - 21 WRX, STI] Oil Cooler Tuner Kit - JDMuscleOil Cooler / Transmission CoolerperPSP-OIL-125](http://jdmuscleusa.com/cdn/shop/files/perrin-performance-02-14-subaru-impreza-15-21-wrx-sti-oil-cooler-tuner-kit-9010308.jpg?v=1770322451&width=220)
![Perrin Performance [15 - 21 Subaru WRX] Oil Cooler Tuner Kit - JDMuscleOil Cooler / Transmission CoolerperPSP-OIL-126](http://jdmuscleusa.com/cdn/shop/files/perrin-performance-15-21-subaru-wrx-oil-cooler-tuner-kit-7003940.jpg?v=1770322452&width=220)
![Perrin Performance [15 - 21 Subaru WRX] Oil Cooler Tuner Kit - JDMuscleOil Cooler / Transmission CoolerperPSP-OIL-126](http://jdmuscleusa.com/cdn/shop/files/perrin-performance-15-21-subaru-wrx-oil-cooler-tuner-kit-8045871.jpg?v=1770322452&width=220)
![TR [02 - 07 WRX, 04 - 21 STI] GTX3076 Turbo w/ Billet Wheel - JDMuscleTurbosTR-TS10461.3 bar](http://jdmuscleusa.com/cdn/shop/products/tr-02-07-wrx-04-21-sti-gtx3076-turbo-w-billet-wheel-8387249.jpg?v=1770337995&width=220)
![TR [02 - 07 WRX, 04 - 21 STI] GTX3076 Turbo w/ Billet Wheel - JDMuscleTurbosTR-TS10461.3 bar](http://jdmuscleusa.com/cdn/shop/products/tr-02-07-wrx-04-21-sti-gtx3076-turbo-w-billet-wheel-9918773.jpg?v=1770337995&width=220)
![IAG [15 - 21 WRX] Stage 1 FA20DIT Subaru Short Block for - JDMuscleShort BlocksIAG-ENG-1050](http://jdmuscleusa.com/cdn/shop/products/iag-15-21-wrx-stage-1-fa20dit-subaru-short-block-for-7573168.jpg?v=1772964132&width=220)
![IAG [15 - 21 WRX] Stage 1 FA20DIT Subaru Short Block for - JDMuscleShort BlocksIAG-ENG-1050](http://jdmuscleusa.com/cdn/shop/products/iag-15-21-wrx-stage-1-fa20dit-subaru-short-block-for-6273214.jpg?v=1772964132&width=220)