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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Up to $434.20 offInvidia N1 Cat Back Exhaust w/ Bead Blasted Piping Titanium Tip
Fits: 15-21 WRX/STI
Regular price $956.00Sale price $956.00 Regular priceUnit price per$1,390.20 -
![GReddy [15-21 WRX/STI] Supreme SP Cat-Back Exhaust System | 10168202](//jdmuscleusa.com/cdn/shop/products/greddy-supreme-sp-cat-back-exhaust-subaru-wrx-sti-sedan-2015-2020-10168202-cat-back-exhaust-system-greddy-gre10168202.jpg?v=1643819343&width=220)
![GReddy [15-21 WRX/STI] Supreme SP Cat-Back Exhaust System | 10168202](//jdmuscleusa.com/cdn/shop/products/greddy-supreme-sp-cat-back-exhaust-subaru-wrx-sti-sedan-2015-2020-10168202-cat-back-exhaust-system-greddy-gre10168202-2.jpg?v=1643819343&width=220)
Up to $59.75 offGReddy Supreme SP Cat-Back Exhaust System | 10168202
Fits: 15-21 WRX/STI
Regular price $1,135.25Sale price $1,135.25 Regular priceUnit price per$1,195.00 -
In StockKartboy Battery Tie Down | KB-100-BT
Fits: Most Subaru Models
Regular price $45.00Sale price $45.00 Regular priceUnit price per$45.00 -
Process West 15-21 WRX Black Verticooler Top Mount Intercooler | PWTMIC14B
Regular price $1,103.44Sale price $1,103.44 Regular priceUnit price per$1,103.44 -
Process West 15-21 WRX Khanacooler Top Mount Intercooler Black | PWTMIC16B
Regular price $735.00Sale price $735.00 Regular priceUnit price per$735.00 -
![Mishimoto [15-21 WRX] Topmount Street Intercooler Shroud | MMTMIC-WRX-15XSHR](//jdmuscleusa.com/cdn/shop/products/mishimoto-topmount-street-intercooler-shroud-subaru-wrx-2015-2019-intercoolers-mishimoto-mmtmic-wrx-15xshr.jpg?v=1614514386&width=220)
Up to $11.05 off
In StockMishimoto Topmount Street Intercooler Shroud
Fits: 15-21 WRX
Only 2 leftRegular price $113.95Sale price $113.95 Regular priceUnit price per$125.00 -
Process West 15-21 WRX Charge Pipe Kit | PWCP01
Regular price $275.00Sale price $275.00 Regular priceUnit price per$275.00 -
In StockTorque Solution T-Bolt Hose Clamp - Universal
Only 16 leftRegular price From $15.00Sale price From $15.00 Regular priceUnit price per$15.00 -
![Mishimoto [15-25 WRX, 14-18 FXT] 68 Degree Celcius Racing Thermostat | MMTS-WRX-15](//jdmuscleusa.com/cdn/shop/products/mishimoto-racing-thermostat-subaru-wrx-2015-2019-forester-xt-2014-2017-thermostats-mishimoto-mmts-wrx-15.jpg?v=1614514824&width=220)
![Mishimoto [15-25 WRX, 14-18 FXT] 68 Degree Celcius Racing Thermostat | MMTS-WRX-15](//jdmuscleusa.com/cdn/shop/products/mishimoto-racing-thermostat-subaru-wrx-2015-2019-forester-xt-2014-2017-thermostats-mishimoto-mmts-wrx-15-2.jpg?v=1614514824&width=220)
Up to $7.05 off
In StockMishimoto 68 Degree Celcius Racing Thermostat | MMTS-WRX-15
Fits: 15-25 WRX, 14-18 FXT
Only 10 leftRegular price $68.95Sale price $68.95 Regular priceUnit price per$76.00 -
Up to $18 off
In StockOVERTAKE Catback Exhaust Hardware Refresh Kit
Fits: 08-26 WRX, 08-21 STI Sedan
Regular price $89.00Sale price $89.00 Regular priceUnit price per$107.00 -
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 -
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 -
IAG Performance 550 Series EJ25 Short Block
Fits: 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT
Regular price $4,499.00Sale price $4,499.00 Regular priceUnit price per$0.00 -
IAG EJ Competition Oil Pan Package
Fits: 02-14 WRX, 04-21 STI, 05-09 LGT, 04-13 FXT
Regular price $799.99Sale price $799.99 Regular priceUnit price per$799.99 -
![COBB [02 - 14 WRX, 07 - 21 STI, 07 - 12 LGT, 07 - 11 FXT] Fuel Injectors Top Feed 1300x - JDMuscleFuel Injectors and Accessoriescobb312230](//jdmuscleusa.com/cdn/shop/products/cobb-02-14-wrx-07-21-sti-07-12-lgt-07-11-fxt-fuel-injectors-top-feed-1300x-2633778.jpg?v=1775590690&width=220)
![COBB [02 - 14 WRX, 07 - 21 STI, 07 - 12 LGT, 07 - 11 FXT] Fuel Injectors Top Feed 1300x - JDMuscleFuel Injectors and Accessoriescobb312230](//jdmuscleusa.com/cdn/shop/products/cobb-02-14-wrx-07-21-sti-07-12-lgt-07-11-fxt-fuel-injectors-top-feed-1300x-6193334.jpg?v=1775590690&width=220)
Up to $8 offCOBB Fuel Injectors Top Feed 1300x
Fits: 02-14 WRX, 07-21 STI, 07-12 LGT, 07-11 FXT
Regular price $952.00Sale price $952.00 Regular priceUnit price per$960.00 -
![Killer B Motorsport [02-07 WRX, 04-21 STI] Extreme Flow Hard Cast Aluminum Turbo Inlet | EJTI](//jdmuscleusa.com/cdn/shop/products/716ec7343050a4ae23c2fcccac1a4b67.jpg?v=1626227143&width=220)
![Killer B Motorsport [02-07 WRX, 04-21 STI] Extreme Flow Hard Cast Aluminum Turbo Inlet | EJTI](//jdmuscleusa.com/cdn/shop/products/6413330258b763122587f03f16a136ef.jpg?v=1626227143&width=220)
Killer B Motorsport Extreme Flow Hard Cast Aluminum Turbo Inlet | EJTI
Fits: 02-07 WRX, 04-21 STI
Regular price $373.00Sale price $373.00 Regular priceUnit price per$373.00
![GReddy [15-21 WRX/STI] Supreme SP Cat-Back Exhaust System | 10168202](http://jdmuscleusa.com/cdn/shop/products/greddy-supreme-sp-cat-back-exhaust-subaru-wrx-sti-sedan-2015-2020-10168202-cat-back-exhaust-system-greddy-gre10168202.jpg?v=1643819343&width=220)
![GReddy [15-21 WRX/STI] Supreme SP Cat-Back Exhaust System | 10168202](http://jdmuscleusa.com/cdn/shop/products/greddy-supreme-sp-cat-back-exhaust-subaru-wrx-sti-sedan-2015-2020-10168202-cat-back-exhaust-system-greddy-gre10168202-2.jpg?v=1643819343&width=220)
![Mishimoto [15-21 WRX] Topmount Street Intercooler Shroud | MMTMIC-WRX-15XSHR](http://jdmuscleusa.com/cdn/shop/products/mishimoto-topmount-street-intercooler-shroud-subaru-wrx-2015-2019-intercoolers-mishimoto-mmtmic-wrx-15xshr.jpg?v=1614514386&width=220)
![Mishimoto [15-25 WRX, 14-18 FXT] 68 Degree Celcius Racing Thermostat | MMTS-WRX-15](http://jdmuscleusa.com/cdn/shop/products/mishimoto-racing-thermostat-subaru-wrx-2015-2019-forester-xt-2014-2017-thermostats-mishimoto-mmts-wrx-15.jpg?v=1614514824&width=220)
![Mishimoto [15-25 WRX, 14-18 FXT] 68 Degree Celcius Racing Thermostat | MMTS-WRX-15](http://jdmuscleusa.com/cdn/shop/products/mishimoto-racing-thermostat-subaru-wrx-2015-2019-forester-xt-2014-2017-thermostats-mishimoto-mmts-wrx-15-2.jpg?v=1614514824&width=220)
![COBB [02 - 14 WRX, 07 - 21 STI, 07 - 12 LGT, 07 - 11 FXT] Fuel Injectors Top Feed 1300x - JDMuscleFuel Injectors and Accessoriescobb312230](http://jdmuscleusa.com/cdn/shop/products/cobb-02-14-wrx-07-21-sti-07-12-lgt-07-11-fxt-fuel-injectors-top-feed-1300x-2633778.jpg?v=1775590690&width=220)
![COBB [02 - 14 WRX, 07 - 21 STI, 07 - 12 LGT, 07 - 11 FXT] Fuel Injectors Top Feed 1300x - JDMuscleFuel Injectors and Accessoriescobb312230](http://jdmuscleusa.com/cdn/shop/products/cobb-02-14-wrx-07-21-sti-07-12-lgt-07-11-fxt-fuel-injectors-top-feed-1300x-6193334.jpg?v=1775590690&width=220)
![Killer B Motorsport [02-07 WRX, 04-21 STI] Extreme Flow Hard Cast Aluminum Turbo Inlet | EJTI](http://jdmuscleusa.com/cdn/shop/products/716ec7343050a4ae23c2fcccac1a4b67.jpg?v=1626227143&width=220)
![Killer B Motorsport [02-07 WRX, 04-21 STI] Extreme Flow Hard Cast Aluminum Turbo Inlet | EJTI](http://jdmuscleusa.com/cdn/shop/products/6413330258b763122587f03f16a136ef.jpg?v=1626227143&width=220)