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] CAN Fuel Pressure Sensor Kit - JDMuscleFuel Pressure Sensorcobb344750](//jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrx-can-fuel-pressure-sensor-kit-7132857.jpg?v=1770325399&width=220)
![COBB [15 - 21 WRX] CAN Fuel Pressure Sensor Kit - JDMuscleFuel Pressure Sensorcobb344750](//jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrx-can-fuel-pressure-sensor-kit-9033751.jpg?v=1770325399&width=220)
In StockCOBB CAN Fuel Pressure Sensor Kit
Fits: 15-21 WRX
Regular price $275.00Sale price $275.00 Regular priceUnit price per$275.00 -
![Cobb [18 - 21 WRX] CAN Flex Fuel Upgrade - Module/Harness/Bracket/Ethanol Sensor - JDMuscleFlex Fuelcobb344650](//jdmuscleusa.com/cdn/shop/files/cobb-18-21-wrx-can-flex-fuel-upgrade-moduleharnessbracketethanol-sensor-9760633.jpg?v=1770325403&width=220)
![Cobb [18 - 21 WRX] CAN Flex Fuel Upgrade - Module/Harness/Bracket/Ethanol Sensor - JDMuscleFlex Fuelcobb344650](//jdmuscleusa.com/cdn/shop/files/cobb-18-21-wrx-can-flex-fuel-upgrade-moduleharnessbracketethanol-sensor-3058231.jpg?v=1770325404&width=220)
In StockCobb CAN Flex Fuel Upgrade - Module/Harness/Bracket/Ethanol Sensor
Fits: 18-21 WRX
Regular price $1,035.00Sale price $1,035.00 Regular priceUnit price per$1,035.00 -
![Cobb [15 - 17 WRX] CAN Flex Fuel Upgrade - Module/Harness/Bracket/Ethanol Sensor - JDMuscleFlex Fuelcobb343650](//jdmuscleusa.com/cdn/shop/files/cobb-15-17-wrx-can-flex-fuel-upgrade-moduleharnessbracketethanol-sensor-9575282.jpg?v=1770325403&width=220)
![Cobb [15 - 17 WRX] CAN Flex Fuel Upgrade - Module/Harness/Bracket/Ethanol Sensor - JDMuscleFlex Fuelcobb343650](//jdmuscleusa.com/cdn/shop/files/cobb-15-17-wrx-can-flex-fuel-upgrade-moduleharnessbracketethanol-sensor-9036923.jpg?v=1770325403&width=220)
In StockCobb CAN Flex Fuel Upgrade - Module/Harness/Bracket/Ethanol Sensor
Fits: 15-17 WRX
Only 10 leftRegular price $1,035.00Sale price $1,035.00 Regular priceUnit price per$1,035.00 -
![Cobb [15 - 21 WRX, 14 - 18 Forester XT] Silicone Radiator Hose Kit - JDMuscleRadiator HosescobbB43400-BK](//jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrx-14-18-forester-xt-silicone-radiator-hose-kit-8661881.jpg?v=1770327158&width=220)
![Cobb [15 - 21 WRX, 14 - 18 Forester XT] Silicone Radiator Hose Kit - JDMuscleRadiator HosescobbB43400-BK](//jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrx-14-18-forester-xt-silicone-radiator-hose-kit-4512368.jpg?v=1770327159&width=220)
In StockCobb Silicone Radiator Hose Kit
Fits: 15-21 WRX, 14-18 Forester XT
Only 12 leftRegular price $106.00Sale price $106.00 Regular priceUnit price per$106.00 -
IAG Performance 15-21 WRX Air / Oil Separator | AOS Street to Competition Series Conversion Kit | IAG-ENG-7211
Regular price $89.99Sale price $89.99 Regular priceUnit price per$89.99 -
IAG Performance 15-21 WRX Air/Oil Separator Competition to Street Series Conversion Kit | IAG-ENG-7114
Regular price $104.99Sale price $104.99 Regular priceUnit price per$104.99 -
![Perrin [15 - 21 WRX/STI] Radiator Shroud with OEM Intake Scoop - Hyper Pink | PSP - ENG - 512 - 4HP - JDMuscleRadiator ShroudsperPSP-ENG-512-4HP](//jdmuscleusa.com/cdn/shop/products/perrin-15-21-wrxsti-radiator-shroud-with-oem-intake-scoop-hyper-pink-psp-eng-512-4hp-8991737.jpg?v=1770327921&width=220)
![Perrin [15 - 21 WRX/STI] Radiator Shroud with OEM Intake Scoop - Hyper Pink | PSP - ENG - 512 - 4HP - JDMuscleRadiator ShroudsperPSP-ENG-512-4HP](//jdmuscleusa.com/cdn/shop/products/perrin-15-21-wrxsti-radiator-shroud-with-oem-intake-scoop-hyper-pink-psp-eng-512-4hp-3281667.jpg?v=1770327921&width=220)
Up to $36.25 offPerrin Radiator Shroud with OEM Intake Scoop - Hyper Pink | PSP-ENG-512-4HP
Fits: 15-21 WRX/STI
Regular price $108.75Sale price $108.75 Regular priceUnit price per$145.00 -
![FactionFab [15 - 21 WRX, 15 - 18 STI] Axle Back Exhaust Polished Tip | 1.10204.1 - JDMuscleAxle Back Exhausts1.10204.1](//jdmuscleusa.com/cdn/shop/files/factionfab-15-21-wrx-15-18-sti-axle-back-exhaust-polished-tip-1102041-5689418.jpg?v=1770327979&width=220)
![FactionFab [15 - 21 WRX, 15 - 18 STI] Axle Back Exhaust Polished Tip | 1.10204.1 - JDMuscleAxle Back Exhausts1.10204.1](//jdmuscleusa.com/cdn/shop/files/factionfab-15-21-wrx-15-18-sti-axle-back-exhaust-polished-tip-1102041-1324329.jpg?v=1770327979&width=220)
FactionFab Axle Back Exhaust Polished Tip | 1.10204.1
Fits: 15-21 WRX, 15-18 STI
Regular price $390.00Sale price $390.00 Regular priceUnit price per$390.00 -
![Grimmspeed [15 - 21 WRX] V2 Bypass Valve Red | 126033RED - JDMuscleBlow Off Valvesgrm126033RED](//jdmuscleusa.com/cdn/shop/files/grimmspeed-15-21-wrx-v2-bypass-valve-red-126033red-6047985.jpg?v=1770328218&width=220)
![Grimmspeed [15 - 21 WRX] V2 Bypass Valve Red | 126033RED - JDMuscleBlow Off Valvesgrm126033RED](//jdmuscleusa.com/cdn/shop/files/grimmspeed-15-21-wrx-v2-bypass-valve-red-126033red-9062918.jpg?v=1770328218&width=220)
Grimmspeed V2 Bypass Valve Red | 126033RED
Fits: 15-21 WRX
Regular price $352.00Sale price $352.00 Regular priceUnit price per$352.00 -
Up to $17 off
In StockTurbo XS WRX/STi 3in Downpipe to OEM Cat-Back Adapter w/OEM Donut Gasket | ADA-3DP-OEMCB-2
Regular price $56.00Sale price $56.00 Regular priceUnit price per$73.00 -
![MBRP [15 - 21 WRX/STI] 3inch Cat Back Dual Split Rear Exit T304 with Carbon Fiber Tips Street version | S48003CF - JDMuscleCat Back Exhaust SystemMBRS48003CF](//jdmuscleusa.com/cdn/shop/products/mbrp-15-21-wrxsti-3inch-cat-back-dual-split-rear-exit-t304-with-carbon-fiber-tips-street-version-s48003cf-1108331.jpg?v=1770329143&width=220)
![MBRP [15 - 21 WRX/STI] 3inch Cat Back Dual Split Rear Exit T304 with Carbon Fiber Tips Street version | S48003CF - JDMuscleCat Back Exhaust SystemMBRS48003CF](//jdmuscleusa.com/cdn/shop/files/mbrp-15-21-wrxsti-3inch-cat-back-dual-split-rear-exit-t304-with-carbon-fiber-tips-street-version-s48003cf-4543361.png?v=1770329144&width=220)
Up to $269.41 offMBRP 3inch Cat Back Dual Split Rear Exit T304 with Carbon Fiber Tips Street version | S48003CF
Fits: 15-21 WRX/STI
Regular price $1,144.99Sale price $1,144.99 Regular priceUnit price per$1,414.40 -
Subaru OEM Muffler Exhaust Gasket Most Subaru Models | 44022AA131
Regular price $10.55Sale price $10.55 Regular priceUnit price per$10.55 -
Mishimoto Catted Downpipe WRX 15-21 | WRX-15CAT
Regular price $885.66Sale price $885.66 Regular priceUnit price per$885.66 -
![Subaru [15 - 21 WRX, 14 - 18 Forester] J - Pipe/Downpipe Turbo Stud | 800910630 - JDMuscleExhaust Gaskets and HardwareSUB800910630](//jdmuscleusa.com/cdn/shop/products/subaru-15-21-wrx-14-18-forester-j-pipedownpipe-turbo-stud-800910630-3247527.jpg?v=1770329479&width=220)
![Subaru [15 - 21 WRX, 14 - 18 Forester] J - Pipe/Downpipe Turbo Stud | 800910630 - JDMuscleExhaust Gaskets and HardwareSUB800910630](//jdmuscleusa.com/cdn/shop/files/subaru-15-21-wrx-14-18-forester-j-pipedownpipe-turbo-stud-800910630-4194255.webp?v=1770329479&width=220)
Subaru J-Pipe/Downpipe Turbo Stud | 800910630
Fits: 15-21 WRX, 14-18 Forester
Regular price $9.00Sale price $9.00 Regular priceUnit price per$9.00 -
![Remark [15 - 21 WRX/STI] Stainless Steel Axle Back w/ Double Wall 4 Inch Polished Tips | RO - TSVA - D4 - JDMuscleAxle Back ExhaustsremRO-TSVA-D4](//jdmuscleusa.com/cdn/shop/products/remark-15-21-wrxsti-stainless-steel-axle-back-w-double-wall-4-inch-polished-tips-ro-tsva-d4-3491771.jpg?v=1770329774&width=220)
![Remark [15 - 21 WRX/STI] Stainless Steel Axle Back w/ Double Wall 4 Inch Polished Tips | RO - TSVA - D4 - JDMuscleAxle Back ExhaustsremRO-TSVA-D4](//jdmuscleusa.com/cdn/shop/files/remark-15-21-wrxsti-stainless-steel-axle-back-w-double-wall-4-inch-polished-tips-ro-tsva-d4-8083148.jpg?v=1770329774&width=220)
In StockRemark Stainless Steel Axle Back w/ Double Wall 4 Inch Polished Tips | RO-TSVA-D4
Fits: 15-21 WRX/STI
Only 15 leftRegular price $695.00Sale price $695.00 Regular priceUnit price per$695.00 -
![Mishimoto [15 - 21 WRX/STI] Stainless Steel Cat Back Exhaust | MMEXH - WRX - 15 - JDMuscleCat Back Exhaust SystemMIMMMEXH-WRX-15](//jdmuscleusa.com/cdn/shop/products/mishimoto-15-21-wrxsti-stainless-steel-cat-back-exhaust-mmexh-wrx-15-3642986.png?v=1770329895&width=220)
![Mishimoto [15 - 21 WRX/STI] Stainless Steel Cat Back Exhaust | MMEXH - WRX - 15 - JDMuscleCat Back Exhaust SystemMIMMMEXH-WRX-15](//jdmuscleusa.com/cdn/shop/products/mishimoto-15-21-wrxsti-stainless-steel-cat-back-exhaust-mmexh-wrx-15-9137942.png?v=1770329896&width=220)
Up to $133.05 offMishimoto Stainless Steel Cat Back Exhaust | MMEXH-WRX-15
Fits: 15-21 WRX/STI
Regular price $1,326.95Sale price $1,326.95 Regular priceUnit price per$1,460.00
![COBB [15 - 21 WRX] CAN Fuel Pressure Sensor Kit - JDMuscleFuel Pressure Sensorcobb344750](http://jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrx-can-fuel-pressure-sensor-kit-7132857.jpg?v=1770325399&width=220)
![COBB [15 - 21 WRX] CAN Fuel Pressure Sensor Kit - JDMuscleFuel Pressure Sensorcobb344750](http://jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrx-can-fuel-pressure-sensor-kit-9033751.jpg?v=1770325399&width=220)
![Cobb [18 - 21 WRX] CAN Flex Fuel Upgrade - Module/Harness/Bracket/Ethanol Sensor - JDMuscleFlex Fuelcobb344650](http://jdmuscleusa.com/cdn/shop/files/cobb-18-21-wrx-can-flex-fuel-upgrade-moduleharnessbracketethanol-sensor-9760633.jpg?v=1770325403&width=220)
![Cobb [18 - 21 WRX] CAN Flex Fuel Upgrade - Module/Harness/Bracket/Ethanol Sensor - JDMuscleFlex Fuelcobb344650](http://jdmuscleusa.com/cdn/shop/files/cobb-18-21-wrx-can-flex-fuel-upgrade-moduleharnessbracketethanol-sensor-3058231.jpg?v=1770325404&width=220)
![Cobb [15 - 17 WRX] CAN Flex Fuel Upgrade - Module/Harness/Bracket/Ethanol Sensor - JDMuscleFlex Fuelcobb343650](http://jdmuscleusa.com/cdn/shop/files/cobb-15-17-wrx-can-flex-fuel-upgrade-moduleharnessbracketethanol-sensor-9575282.jpg?v=1770325403&width=220)
![Cobb [15 - 17 WRX] CAN Flex Fuel Upgrade - Module/Harness/Bracket/Ethanol Sensor - JDMuscleFlex Fuelcobb343650](http://jdmuscleusa.com/cdn/shop/files/cobb-15-17-wrx-can-flex-fuel-upgrade-moduleharnessbracketethanol-sensor-9036923.jpg?v=1770325403&width=220)
![Cobb [15 - 21 WRX, 14 - 18 Forester XT] Silicone Radiator Hose Kit - JDMuscleRadiator HosescobbB43400-BK](http://jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrx-14-18-forester-xt-silicone-radiator-hose-kit-8661881.jpg?v=1770327158&width=220)
![Cobb [15 - 21 WRX, 14 - 18 Forester XT] Silicone Radiator Hose Kit - JDMuscleRadiator HosescobbB43400-BK](http://jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrx-14-18-forester-xt-silicone-radiator-hose-kit-4512368.jpg?v=1770327159&width=220)
![Perrin [15 - 21 WRX/STI] Radiator Shroud with OEM Intake Scoop - Hyper Pink | PSP - ENG - 512 - 4HP - JDMuscleRadiator ShroudsperPSP-ENG-512-4HP](http://jdmuscleusa.com/cdn/shop/products/perrin-15-21-wrxsti-radiator-shroud-with-oem-intake-scoop-hyper-pink-psp-eng-512-4hp-8991737.jpg?v=1770327921&width=220)
![Perrin [15 - 21 WRX/STI] Radiator Shroud with OEM Intake Scoop - Hyper Pink | PSP - ENG - 512 - 4HP - JDMuscleRadiator ShroudsperPSP-ENG-512-4HP](http://jdmuscleusa.com/cdn/shop/products/perrin-15-21-wrxsti-radiator-shroud-with-oem-intake-scoop-hyper-pink-psp-eng-512-4hp-3281667.jpg?v=1770327921&width=220)
![FactionFab [15 - 21 WRX, 15 - 18 STI] Axle Back Exhaust Polished Tip | 1.10204.1 - JDMuscleAxle Back Exhausts1.10204.1](http://jdmuscleusa.com/cdn/shop/files/factionfab-15-21-wrx-15-18-sti-axle-back-exhaust-polished-tip-1102041-5689418.jpg?v=1770327979&width=220)
![FactionFab [15 - 21 WRX, 15 - 18 STI] Axle Back Exhaust Polished Tip | 1.10204.1 - JDMuscleAxle Back Exhausts1.10204.1](http://jdmuscleusa.com/cdn/shop/files/factionfab-15-21-wrx-15-18-sti-axle-back-exhaust-polished-tip-1102041-1324329.jpg?v=1770327979&width=220)
![Grimmspeed [15 - 21 WRX] V2 Bypass Valve Red | 126033RED - JDMuscleBlow Off Valvesgrm126033RED](http://jdmuscleusa.com/cdn/shop/files/grimmspeed-15-21-wrx-v2-bypass-valve-red-126033red-6047985.jpg?v=1770328218&width=220)
![Grimmspeed [15 - 21 WRX] V2 Bypass Valve Red | 126033RED - JDMuscleBlow Off Valvesgrm126033RED](http://jdmuscleusa.com/cdn/shop/files/grimmspeed-15-21-wrx-v2-bypass-valve-red-126033red-9062918.jpg?v=1770328218&width=220)
![MBRP [15 - 21 WRX/STI] 3inch Cat Back Dual Split Rear Exit T304 with Carbon Fiber Tips Street version | S48003CF - JDMuscleCat Back Exhaust SystemMBRS48003CF](http://jdmuscleusa.com/cdn/shop/products/mbrp-15-21-wrxsti-3inch-cat-back-dual-split-rear-exit-t304-with-carbon-fiber-tips-street-version-s48003cf-1108331.jpg?v=1770329143&width=220)
![MBRP [15 - 21 WRX/STI] 3inch Cat Back Dual Split Rear Exit T304 with Carbon Fiber Tips Street version | S48003CF - JDMuscleCat Back Exhaust SystemMBRS48003CF](http://jdmuscleusa.com/cdn/shop/files/mbrp-15-21-wrxsti-3inch-cat-back-dual-split-rear-exit-t304-with-carbon-fiber-tips-street-version-s48003cf-4543361.png?v=1770329144&width=220)
![Subaru [15 - 21 WRX, 14 - 18 Forester] J - Pipe/Downpipe Turbo Stud | 800910630 - JDMuscleExhaust Gaskets and HardwareSUB800910630](http://jdmuscleusa.com/cdn/shop/products/subaru-15-21-wrx-14-18-forester-j-pipedownpipe-turbo-stud-800910630-3247527.jpg?v=1770329479&width=220)
![Subaru [15 - 21 WRX, 14 - 18 Forester] J - Pipe/Downpipe Turbo Stud | 800910630 - JDMuscleExhaust Gaskets and HardwareSUB800910630](http://jdmuscleusa.com/cdn/shop/files/subaru-15-21-wrx-14-18-forester-j-pipedownpipe-turbo-stud-800910630-4194255.webp?v=1770329479&width=220)
![Remark [15 - 21 WRX/STI] Stainless Steel Axle Back w/ Double Wall 4 Inch Polished Tips | RO - TSVA - D4 - JDMuscleAxle Back ExhaustsremRO-TSVA-D4](http://jdmuscleusa.com/cdn/shop/products/remark-15-21-wrxsti-stainless-steel-axle-back-w-double-wall-4-inch-polished-tips-ro-tsva-d4-3491771.jpg?v=1770329774&width=220)
![Remark [15 - 21 WRX/STI] Stainless Steel Axle Back w/ Double Wall 4 Inch Polished Tips | RO - TSVA - D4 - JDMuscleAxle Back ExhaustsremRO-TSVA-D4](http://jdmuscleusa.com/cdn/shop/files/remark-15-21-wrxsti-stainless-steel-axle-back-w-double-wall-4-inch-polished-tips-ro-tsva-d4-8083148.jpg?v=1770329774&width=220)
![Mishimoto [15 - 21 WRX/STI] Stainless Steel Cat Back Exhaust | MMEXH - WRX - 15 - JDMuscleCat Back Exhaust SystemMIMMMEXH-WRX-15](http://jdmuscleusa.com/cdn/shop/products/mishimoto-15-21-wrxsti-stainless-steel-cat-back-exhaust-mmexh-wrx-15-3642986.png?v=1770329895&width=220)
![Mishimoto [15 - 21 WRX/STI] Stainless Steel Cat Back Exhaust | MMEXH - WRX - 15 - JDMuscleCat Back Exhaust SystemMIMMMEXH-WRX-15](http://jdmuscleusa.com/cdn/shop/products/mishimoto-15-21-wrxsti-stainless-steel-cat-back-exhaust-mmexh-wrx-15-9137942.png?v=1770329896&width=220)