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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![IAG Performance [15 - 21 WRX] Replacement V3 AOS 43" Coolant Line & Fitting | IAG - RPL - HSE - 7180 - CBARB - 43 - JDMuscleAir Oil SeparatorsIAG-RPL-HSE-7180-CBARB-43](//jdmuscleusa.com/cdn/shop/files/iag-performance-15-21-wrx-replacement-v3-aos-43-coolant-line-fitting-iag-rpl-hse-7180-cbarb-43-1902718.jpg?v=1770327636&width=220)
![IAG Performance [15 - 21 WRX] Replacement V3 AOS 43" Coolant Line & Fitting | IAG - RPL - HSE - 7180 - CBARB - 43 - JDMuscleAir Oil SeparatorsIAG-RPL-HSE-7180-CBARB-43](//jdmuscleusa.com/cdn/shop/files/iag-performance-15-21-wrx-replacement-v3-aos-43-coolant-line-fitting-iag-rpl-hse-7180-cbarb-43-1478124.jpg?v=1770327636&width=220)
IAG Performance Replacement V3 AOS 43" Coolant Line & Fitting
Fits: 15-21 WRX
Regular price $54.99Sale price $54.99 Regular priceUnit price per$54.99 -
![Nameless Performance [11 - 21 WRX Sedan, 11 - 21 STI Sedan] Axle Back Polished Tips and No Muffler for Invidia Q300 / R400 Catback Exhaust Systems | SUAB15STI - INV - 35SSW - JDMuscleAxle Back ExhaustsSUAB15STI-INV-35SSW](//jdmuscleusa.com/cdn/shop/files/nameless-performance-11-21-wrx-sedan-11-21-sti-sedan-axle-back-polished-tips-and-no-muffler-for-invidia-q300-r400-catback-exhaust-systems-suab15sti-inv-35ssw-3762911.jpg?v=1770327808&width=220)
![Nameless Performance [11 - 21 WRX Sedan, 11 - 21 STI Sedan] Axle Back Polished Tips and No Muffler for Invidia Q300 / R400 Catback Exhaust Systems | SUAB15STI - INV - 35SSW - JDMuscleAxle Back ExhaustsSUAB15STI-INV-35SSW](//jdmuscleusa.com/cdn/shop/files/nameless-performance-11-21-wrx-sedan-11-21-sti-sedan-axle-back-polished-tips-and-no-muffler-for-invidia-q300-r400-catback-exhaust-systems-suab15sti-inv-35ssw-3096433.jpg?v=1770327809&width=220)
Nameless Performance Axle Back Polished Tips and No Muffler for Invidia Q300 / R400 Catback Exhaust Systems
Fits: 11-21 WRX Sedan, 11-21 STI Sedan
Regular price $730.00Sale price $730.00 Regular priceUnit price per$0.00 -
![Nameless Performance [15 - 21 WRX, 15 - 18 STI] Axle Back Exhaust w/ 3" Double Wall Polished Tips and 4" Mufflers | SUAB15WRX - 4MU - 30SDW - JDMuscleAxle Back ExhaustsSUAB15WRX-4MU-30SDW](//jdmuscleusa.com/cdn/shop/files/nameless-performance-15-21-wrx-15-18-sti-axle-back-exhaust-w-3-double-wall-polished-tips-and-4-mufflers-suab15wrx-4mu-30sdw-6518727.jpg?v=1770327864&width=220)
![Nameless Performance [15 - 21 WRX, 15 - 18 STI] Axle Back 3.5" Single Wall Polished Tips and No Muffler | SUAB15WRX - 0MU - 35SSW - JDMuscleAxle Back ExhaustsSUAB15WRX-0MU-35SSW](//jdmuscleusa.com/cdn/shop/files/nameless-performance-15-21-wrx-15-18-sti-axle-back-35-single-wall-polished-tips-and-no-muffler-suab15wrx-0mu-35ssw-1129950.jpg?v=1770327693&width=220)
Nameless Performance Axle Back Exhaust w/ 3" Double Wall Polished Tips and 4" Mufflers
Fits: 15-21 WRX, 15-18 STI
Regular price $880.00Sale price $880.00 Regular priceUnit price per$0.00 -
![ETS [15 - 21 WRX/STI] Catback Exhaust Rear Section Replacement Muffled w/ Polished Tips | 200 - 30 - EXH - 016 - JDMuscleMufflersETS200-30-EXH-016](//jdmuscleusa.com/cdn/shop/files/ets-15-21-wrxsti-catback-exhaust-rear-section-replacement-muffled-w-polished-tips-200-30-exh-016-2713907.webp?v=1770327867&width=220)
ETS Catback Exhaust Rear Section Replacement Muffled w/ Polished Tips
Fits: 15-21 WRX/STI
Regular price $845.00Sale price $845.00 Regular priceUnit price per$845.00 -
![Nameless Performance [11 - 21 WRX Sedan, 11 - 21 STI Sedan] Axle Back Neochrome Tips for Invidia Q300 / R400 Catback Exhaust Systems | SUAB15STI - INV - 35NEO - JDMuscleAxle Back ExhaustsSUAB15STI-INV-35NEO](//jdmuscleusa.com/cdn/shop/files/nameless-performance-11-21-wrx-sedan-11-21-sti-sedan-axle-back-neochrome-tips-for-invidia-q300-r400-catback-exhaust-systems-suab15sti-inv-35neo-7268990.jpg?v=1770327916&width=220)
![Nameless Performance [11 - 21 WRX Sedan, 11 - 21 STI Sedan] Axle Back Neochrome Tips for Invidia Q300 / R400 Catback Exhaust Systems | SUAB15STI - INV - 35NEO - JDMuscleAxle Back ExhaustsSUAB15STI-INV-35NEO](//jdmuscleusa.com/cdn/shop/files/nameless-performance-11-21-wrx-sedan-11-21-sti-sedan-axle-back-neochrome-tips-for-invidia-q300-r400-catback-exhaust-systems-suab15sti-inv-35neo-6130479.jpg?v=1770327916&width=220)
Nameless Performance Axle Back Neochrome Tips for Invidia Q300 / R400 Catback Exhaust Systems
Fits: 11-21 WRX Sedan, 11-21 STI Sedan
Regular price $840.00Sale price $840.00 Regular priceUnit price per$571.00 -
![Perrin [15 - 21 WRX/STI] Without OEM Intake Scoop 2pc Radiator Shroud Hyper Pink | PSP - ENG - 512 - 2HP - JDMuscleRadiator ShroudsperPSP-ENG-512-2HP](//jdmuscleusa.com/cdn/shop/products/perrin-15-21-wrxsti-without-oem-intake-scoop-2pc-radiator-shroud-hyper-pink-psp-eng-512-2hp-3493968.jpg?v=1770327921&width=220)
![Perrin [15 - 21 WRX/STI] Without OEM Intake Scoop 2pc Radiator Shroud Hyper Pink | PSP - ENG - 512 - 2HP - JDMuscleRadiator ShroudsperPSP-ENG-512-2HP](//jdmuscleusa.com/cdn/shop/products/perrin-15-21-wrxsti-without-oem-intake-scoop-2pc-radiator-shroud-hyper-pink-psp-eng-512-2hp-4018436.jpg?v=1770327921&width=220)
Up to $36.25 off
In StockPerrin Without OEM Intake Scoop 2pc Radiator Shroud Hyper Pink | PSP-ENG-512-2HP
Fits: 15-21 WRX/STI
Only 1 leftRegular price $108.75Sale price $108.75 Regular priceUnit price per$145.00 -
![IAG Performance [10 - 21 WRX/STI, 05 - 13 Legacy, 04 - 14 Impreza, 04 - 13 Forester, 05 - 09 Outback] Cooper Ring Head Gasket Pair EJ25 100MM Bore .051 Inch Thickness w/ 1/2 Inch or 11MM Head Studs | IAG - ENG - 1731P - JDMuscleHead GasketsIAG-ENG-1731P](//jdmuscleusa.com/cdn/shop/files/iag-performance-10-21-wrxsti-05-13-legacy-04-14-impreza-04-13-forester-05-09-outback-cooper-ring-head-gasket-pair-ej25-100mm-bore-051-inch-thickness-w-12-inch-o-7318148.jpg?v=1770327969&width=220)
IAG Performance Cooper Ring Head Gasket Pair EJ25 100MM Bore .051 Inch Thickness w/ 1/2 Inch or 11MM Head Studs | IAG-ENG-1731P
Fits: 10-21 WRX/STI, 05-13 Legacy, 04-14 Impreza, 04-13 Forester, 05-09 Outback
Regular price $249.99Sale price $249.99 Regular priceUnit price per$249.99 -
![Remark [15 - 21 WRX/STI] BOSO Edition Axle Back w/ Polished Tips | RO - TSVA - SL - JDMuscleAxle Back ExhaustsRO-TSVA-SL](//jdmuscleusa.com/cdn/shop/files/remark-15-21-wrxsti-boso-edition-axle-back-w-polished-tips-ro-tsva-sl-7434342.jpg?v=1770327973&width=220)
![Remark [15 - 21 WRX/STI] BOSO Edition Axle Back w/ Polished Tips | RO - TSVA - SL - JDMuscleAxle Back ExhaustsRO-TSVA-SL](//jdmuscleusa.com/cdn/shop/files/remark-15-21-wrxsti-boso-edition-axle-back-w-polished-tips-ro-tsva-sl-8479859.jpg?v=1770327973&width=220)
In StockRemark BOSO Edition Axle Back w/ Polished Tips
Fits: 15-21 WRX/STI
Only 5 leftRegular price $695.00Sale price $695.00 Regular priceUnit price per$695.00 -
iBR FLX01 - Upgrade Kit | 3 Pin and 5 Pin Harnesses
Regular price $399.99Sale price $399.99 Regular priceUnit price per$399.99 -
Up to $15.75 off
In StockPerrin Aluminum 15-25 WRX "P" Style Dip Stick Handle Neon Yellow Finish FA20 / FA24 | PSP-ENG-720NY
Only 4 leftRegular price $47.25Sale price $47.25 Regular priceUnit price per$63.00 -
![Perrin [15 - 26 WRX] Aluminum "P" Style Dip Stick Handle Hyper Pink Finish FA20 / FA24 | PSP - ENG - 720HP - JDMuscleDipsticksperPSP-ENG-720HP](//jdmuscleusa.com/cdn/shop/products/perrin-15-26-wrx-aluminum-p-style-dip-stick-handle-hyper-pink-finish-fa20-fa24-psp-eng-720hp-5638902.jpg?v=1770328333&width=220)
![Perrin [15 - 26 WRX] Aluminum "P" Style Dip Stick Handle Hyper Pink Finish FA20 / FA24 | PSP - ENG - 720HP - JDMuscleDipsticksperPSP-ENG-720HP](//jdmuscleusa.com/cdn/shop/products/perrin-15-26-wrx-aluminum-p-style-dip-stick-handle-hyper-pink-finish-fa20-fa24-psp-eng-720hp-5780911.jpg?v=1770328333&width=220)
Up to $15.75 off
In StockPerrin Aluminum "P" Style Dip Stick Handle Hyper Pink Finish FA20 / FA24 | PSP-ENG-720HP
Fits: 15-26 WRX
Only 5 leftRegular price $47.25Sale price $47.25 Regular priceUnit price per$63.00 -
IAG 15-21 WRX 600 Street Cylinder Heads Package | IAG-ENG-H600E (DOES NOT INCLUDE Kelford EZ Cams, Cam Towers, Lifters & Rockers
Regular price $3,199.99Sale price $3,199.99 Regular priceUnit price per$3,199.99 -
IAG 800 FA20 DIT Closed Deck Case Half Set
Fits: 15-21 WRX
Regular price $3,099.99Sale price $3,099.99 Regular priceUnit price per$3,099.99 -
IAG 600 FA20 DIT Long Block Engine w/ IAG 600 Heads
Fits: 15-21 WRX
Regular price $16,499.99Sale price $16,499.99 Regular priceUnit price per$16,499.99 -
![MBRP [15 - 21 WRX/STI] 3inch Cat Back Dual Split Rear Exit T304 with Carbon Fiber Tips Race version | S48023CF - JDMuscleCat Back Exhaust SystemMBRS48023CF](//jdmuscleusa.com/cdn/shop/products/mbrp-15-21-wrxsti-3inch-cat-back-dual-split-rear-exit-t304-with-carbon-fiber-tips-race-version-s48023cf-9838629.jpg?v=1770329842&width=220)
![MBRP [15 - 21 WRX/STI] 3inch Cat Back Dual Split Rear Exit T304 with Carbon Fiber Tips Race version | S48023CF - JDMuscleCat Back Exhaust SystemMBRS48023CF](//jdmuscleusa.com/cdn/shop/products/mbrp-15-21-wrxsti-3inch-cat-back-dual-split-rear-exit-t304-with-carbon-fiber-tips-race-version-s48023cf-6976715.jpg?v=1770329842&width=220)
Up to $247.06 off
In StockMBRP 3inch Cat Back Dual Split Rear Exit T304 with Carbon Fiber Tips Race version | S48023CF
Fits: 15-21 WRX/STI
Only 15 leftRegular price $1,049.99Sale price $1,049.99 Regular priceUnit price per$1,297.05 -
Up to $34.40 offBLOX Racing 15-20 WRX FA20 OEM Performance 3in Turbo Inlet Hose - Black | BXFL-50221-BK
Regular price $137.60Sale price $137.60 Regular priceUnit price per$172.00
![IAG Performance [15 - 21 WRX] Replacement V3 AOS 43" Coolant Line & Fitting | IAG - RPL - HSE - 7180 - CBARB - 43 - JDMuscleAir Oil SeparatorsIAG-RPL-HSE-7180-CBARB-43](http://jdmuscleusa.com/cdn/shop/files/iag-performance-15-21-wrx-replacement-v3-aos-43-coolant-line-fitting-iag-rpl-hse-7180-cbarb-43-1902718.jpg?v=1770327636&width=220)
![IAG Performance [15 - 21 WRX] Replacement V3 AOS 43" Coolant Line & Fitting | IAG - RPL - HSE - 7180 - CBARB - 43 - JDMuscleAir Oil SeparatorsIAG-RPL-HSE-7180-CBARB-43](http://jdmuscleusa.com/cdn/shop/files/iag-performance-15-21-wrx-replacement-v3-aos-43-coolant-line-fitting-iag-rpl-hse-7180-cbarb-43-1478124.jpg?v=1770327636&width=220)
![Nameless Performance [11 - 21 WRX Sedan, 11 - 21 STI Sedan] Axle Back Polished Tips and No Muffler for Invidia Q300 / R400 Catback Exhaust Systems | SUAB15STI - INV - 35SSW - JDMuscleAxle Back ExhaustsSUAB15STI-INV-35SSW](http://jdmuscleusa.com/cdn/shop/files/nameless-performance-11-21-wrx-sedan-11-21-sti-sedan-axle-back-polished-tips-and-no-muffler-for-invidia-q300-r400-catback-exhaust-systems-suab15sti-inv-35ssw-3762911.jpg?v=1770327808&width=220)
![Nameless Performance [11 - 21 WRX Sedan, 11 - 21 STI Sedan] Axle Back Polished Tips and No Muffler for Invidia Q300 / R400 Catback Exhaust Systems | SUAB15STI - INV - 35SSW - JDMuscleAxle Back ExhaustsSUAB15STI-INV-35SSW](http://jdmuscleusa.com/cdn/shop/files/nameless-performance-11-21-wrx-sedan-11-21-sti-sedan-axle-back-polished-tips-and-no-muffler-for-invidia-q300-r400-catback-exhaust-systems-suab15sti-inv-35ssw-3096433.jpg?v=1770327809&width=220)
![Nameless Performance [15 - 21 WRX, 15 - 18 STI] Axle Back Exhaust w/ 3" Double Wall Polished Tips and 4" Mufflers | SUAB15WRX - 4MU - 30SDW - JDMuscleAxle Back ExhaustsSUAB15WRX-4MU-30SDW](http://jdmuscleusa.com/cdn/shop/files/nameless-performance-15-21-wrx-15-18-sti-axle-back-exhaust-w-3-double-wall-polished-tips-and-4-mufflers-suab15wrx-4mu-30sdw-6518727.jpg?v=1770327864&width=220)
![Nameless Performance [15 - 21 WRX, 15 - 18 STI] Axle Back 3.5" Single Wall Polished Tips and No Muffler | SUAB15WRX - 0MU - 35SSW - JDMuscleAxle Back ExhaustsSUAB15WRX-0MU-35SSW](http://jdmuscleusa.com/cdn/shop/files/nameless-performance-15-21-wrx-15-18-sti-axle-back-35-single-wall-polished-tips-and-no-muffler-suab15wrx-0mu-35ssw-1129950.jpg?v=1770327693&width=220)
![ETS [15 - 21 WRX/STI] Catback Exhaust Rear Section Replacement Muffled w/ Polished Tips | 200 - 30 - EXH - 016 - JDMuscleMufflersETS200-30-EXH-016](http://jdmuscleusa.com/cdn/shop/files/ets-15-21-wrxsti-catback-exhaust-rear-section-replacement-muffled-w-polished-tips-200-30-exh-016-2713907.webp?v=1770327867&width=220)
![Nameless Performance [11 - 21 WRX Sedan, 11 - 21 STI Sedan] Axle Back Neochrome Tips for Invidia Q300 / R400 Catback Exhaust Systems | SUAB15STI - INV - 35NEO - JDMuscleAxle Back ExhaustsSUAB15STI-INV-35NEO](http://jdmuscleusa.com/cdn/shop/files/nameless-performance-11-21-wrx-sedan-11-21-sti-sedan-axle-back-neochrome-tips-for-invidia-q300-r400-catback-exhaust-systems-suab15sti-inv-35neo-7268990.jpg?v=1770327916&width=220)
![Nameless Performance [11 - 21 WRX Sedan, 11 - 21 STI Sedan] Axle Back Neochrome Tips for Invidia Q300 / R400 Catback Exhaust Systems | SUAB15STI - INV - 35NEO - JDMuscleAxle Back ExhaustsSUAB15STI-INV-35NEO](http://jdmuscleusa.com/cdn/shop/files/nameless-performance-11-21-wrx-sedan-11-21-sti-sedan-axle-back-neochrome-tips-for-invidia-q300-r400-catback-exhaust-systems-suab15sti-inv-35neo-6130479.jpg?v=1770327916&width=220)
![Perrin [15 - 21 WRX/STI] Without OEM Intake Scoop 2pc Radiator Shroud Hyper Pink | PSP - ENG - 512 - 2HP - JDMuscleRadiator ShroudsperPSP-ENG-512-2HP](http://jdmuscleusa.com/cdn/shop/products/perrin-15-21-wrxsti-without-oem-intake-scoop-2pc-radiator-shroud-hyper-pink-psp-eng-512-2hp-3493968.jpg?v=1770327921&width=220)
![Perrin [15 - 21 WRX/STI] Without OEM Intake Scoop 2pc Radiator Shroud Hyper Pink | PSP - ENG - 512 - 2HP - JDMuscleRadiator ShroudsperPSP-ENG-512-2HP](http://jdmuscleusa.com/cdn/shop/products/perrin-15-21-wrxsti-without-oem-intake-scoop-2pc-radiator-shroud-hyper-pink-psp-eng-512-2hp-4018436.jpg?v=1770327921&width=220)
![IAG Performance [10 - 21 WRX/STI, 05 - 13 Legacy, 04 - 14 Impreza, 04 - 13 Forester, 05 - 09 Outback] Cooper Ring Head Gasket Pair EJ25 100MM Bore .051 Inch Thickness w/ 1/2 Inch or 11MM Head Studs | IAG - ENG - 1731P - JDMuscleHead GasketsIAG-ENG-1731P](http://jdmuscleusa.com/cdn/shop/files/iag-performance-10-21-wrxsti-05-13-legacy-04-14-impreza-04-13-forester-05-09-outback-cooper-ring-head-gasket-pair-ej25-100mm-bore-051-inch-thickness-w-12-inch-o-7318148.jpg?v=1770327969&width=220)
![Remark [15 - 21 WRX/STI] BOSO Edition Axle Back w/ Polished Tips | RO - TSVA - SL - JDMuscleAxle Back ExhaustsRO-TSVA-SL](http://jdmuscleusa.com/cdn/shop/files/remark-15-21-wrxsti-boso-edition-axle-back-w-polished-tips-ro-tsva-sl-7434342.jpg?v=1770327973&width=220)
![Remark [15 - 21 WRX/STI] BOSO Edition Axle Back w/ Polished Tips | RO - TSVA - SL - JDMuscleAxle Back ExhaustsRO-TSVA-SL](http://jdmuscleusa.com/cdn/shop/files/remark-15-21-wrxsti-boso-edition-axle-back-w-polished-tips-ro-tsva-sl-8479859.jpg?v=1770327973&width=220)
![Perrin [15 - 26 WRX] Aluminum "P" Style Dip Stick Handle Hyper Pink Finish FA20 / FA24 | PSP - ENG - 720HP - JDMuscleDipsticksperPSP-ENG-720HP](http://jdmuscleusa.com/cdn/shop/products/perrin-15-26-wrx-aluminum-p-style-dip-stick-handle-hyper-pink-finish-fa20-fa24-psp-eng-720hp-5638902.jpg?v=1770328333&width=220)
![Perrin [15 - 26 WRX] Aluminum "P" Style Dip Stick Handle Hyper Pink Finish FA20 / FA24 | PSP - ENG - 720HP - JDMuscleDipsticksperPSP-ENG-720HP](http://jdmuscleusa.com/cdn/shop/products/perrin-15-26-wrx-aluminum-p-style-dip-stick-handle-hyper-pink-finish-fa20-fa24-psp-eng-720hp-5780911.jpg?v=1770328333&width=220)
![MBRP [15 - 21 WRX/STI] 3inch Cat Back Dual Split Rear Exit T304 with Carbon Fiber Tips Race version | S48023CF - JDMuscleCat Back Exhaust SystemMBRS48023CF](http://jdmuscleusa.com/cdn/shop/products/mbrp-15-21-wrxsti-3inch-cat-back-dual-split-rear-exit-t304-with-carbon-fiber-tips-race-version-s48023cf-9838629.jpg?v=1770329842&width=220)
![MBRP [15 - 21 WRX/STI] 3inch Cat Back Dual Split Rear Exit T304 with Carbon Fiber Tips Race version | S48023CF - JDMuscleCat Back Exhaust SystemMBRS48023CF](http://jdmuscleusa.com/cdn/shop/products/mbrp-15-21-wrxsti-3inch-cat-back-dual-split-rear-exit-t304-with-carbon-fiber-tips-race-version-s48023cf-6976715.jpg?v=1770329842&width=220)
