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 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads
Fits: 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT
Regular price $18,749.99Sale price $18,749.99 Regular priceUnit price per$18,749.99 -
IAG 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads
Fits: 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT
Regular price $18,999.99Sale price $18,999.99 Regular priceUnit price per$18,999.99 -
IAG 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads
Fits: 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT
Regular price $18,749.99Sale price $18,749.99 Regular priceUnit price per$18,749.99 -
IAG 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads
Fits: 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT
Regular price $18,749.99Sale price $18,749.99 Regular priceUnit price per$18,749.99 -
IAG 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads
Fits: 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT
Regular price $18,749.99Sale price $18,749.99 Regular priceUnit price per$18,749.99 -
IAG 1150 Closed Deck Long Block Engine w/ IAG 1150 Heads
Fits: 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT
Regular price $18,999.99Sale price $18,999.99 Regular priceUnit price per$18,999.99 -
IAG PTFE Flex Fuel Line Kit for use w/COBB Flex Fuel Sensor
Fits: 08-14 WRX, 08-21 STI
Regular price $599.99Sale price $599.99 Regular priceUnit price per$599.99 -
![Cobb [15 - 21 WRX/STI] AccessPORT V3 - JDMuscleTunecobbAP3-AU-SUB-004](//jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrxsti-accessport-v3-1913911.jpg?v=1772960829&width=220)
![Cobb [15 - 21 WRX/STI] AccessPORT V3 - JDMuscleTunecobbAP3-AU-SUB-004](//jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrxsti-accessport-v3-1205846.jpg?v=1772960830&width=220)
Up to $4 offCobb AccessPORT V3
Fits: 15-21 WRX/STI
Regular price $766.00Sale price $766.00 Regular priceUnit price per$770.00 -
IAG Performance Competition Series Oil Pan w/ Baffle for Various Subaru Models
Regular price From $629.99Sale price From $629.99 Regular priceUnit price per$629.99 -
IAG / Crest CNC Billet Aluminum EJ25 Subaru Case Halves for Subaru Multiple Fitments
Regular price $11,789.99Sale price $11,789.99 Regular priceUnit price per$11,549.99 -
IAG Performance 76mm Throttle Body Adapter for Multiple Subaru Fitments
Regular price $119.99Sale price $119.99 Regular priceUnit price per$119.99 -
IAG Performance 1st-4th Straight Cut Gear Set
Fits: 04-21 WRX STI
Regular price $6,999.99Sale price $6,999.99 Regular priceUnit price per$6,999.99 -
![IAG [08 - 14 WRX , 08 - 21 STI] PTFE Fuel Line Kit for use w/ COBB Flex Fuel Sensor - JDMuscleFuel Lines and FittingsIAG-AFD-2220](//jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-fuel-line-kit-for-use-w-cobb-flex-fuel-sensor-5205824.jpg?v=1772964128&width=220)
![IAG [08 - 14 WRX , 08 - 21 STI] PTFE Fuel Line Kit for use w/ COBB Flex Fuel Sensor - JDMuscleFuel Lines and FittingsIAG-AFD-2220](//jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-fuel-line-kit-for-use-w-cobb-flex-fuel-sensor-9294723.jpg?v=1772964128&width=220)
IAG PTFE Fuel Line Kit for use w/ COBB Flex Fuel Sensor
Fits: 08-14 WRX , 08-21 STI
Regular price $549.99Sale price $549.99 Regular priceUnit price per$549.99 -
IAG Wrist Pin / Cover Seal Kit for Subaru Multiple Fitments
Regular price $149.99Sale price $149.99 Regular priceUnit price per$149.99 -
![IAG Performance [02 - 14 WRX / 07 - 21 STI / 08 - 12 LGT / 06 - 13 FXT] V3 Top Feed Fuel Rails Black | IAG - AFD - 2102 - JDMuscleFuel RailsIAG-AFD-2102BKBlack Finish](//jdmuscleusa.com/cdn/shop/products/iag-performance-02-14-wrx-07-21-sti-08-12-lgt-06-13-fxt-v3-top-feed-fuel-rails-black-iag-afd-2102-2611020.jpg?v=1770331227&width=220)
![IAG Performance [02 - 14 WRX / 07 - 21 STI / 08 - 12 LGT / 06 - 13 FXT] V3 Top Feed Fuel Rails Black | IAG - AFD - 2102 - JDMuscleFuel RailsIAG-AFD-2102BKBlack Finish](//jdmuscleusa.com/cdn/shop/products/iag-performance-02-14-wrx-07-21-sti-08-12-lgt-06-13-fxt-v3-top-feed-fuel-rails-black-iag-afd-2102-2980305.jpg?v=1770331227&width=220)
IAG Performance V3 Top Feed Fuel Rails Black
Fits: 02-14 WRX, 07-21 STI, 08-12 LGT, 06-13 FXT
Regular price $219.99Sale price $219.99 Regular priceUnit price per$219.99 -
![Cobb [15 - 21 WRX 6MT] Stage 2 Power Package Titanium - Non - Resonated J - Pipe - JDMuscleEngine Package Dealscobb641X12TI](//jdmuscleusa.com/cdn/shop/products/cobb-15-21-wrx-6mt-stage-2-power-package-titanium-non-resonated-j-pipe-2655222.jpg?v=1770336199&width=220)
![Cobb [15 - 21 WRX 6MT] Stage 2 Power Package Titanium - Non - Resonated J - Pipe - JDMuscleEngine Package Dealscobb641X12TI](//jdmuscleusa.com/cdn/shop/products/cobb-15-21-wrx-6mt-stage-2-power-package-titanium-non-resonated-j-pipe-5956397.jpg?v=1770336199&width=220)
Cobb Stage 2 Power Package Titanium - Non-Resonated J-Pipe
Fits: 15-21 WRX 6MT
Regular price $3,455.00Sale price $3,455.00 Regular priceUnit price per$3,455.00
![Cobb [15 - 21 WRX/STI] AccessPORT V3 - JDMuscleTunecobbAP3-AU-SUB-004](http://jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrxsti-accessport-v3-1913911.jpg?v=1772960829&width=220)
![Cobb [15 - 21 WRX/STI] AccessPORT V3 - JDMuscleTunecobbAP3-AU-SUB-004](http://jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrxsti-accessport-v3-1205846.jpg?v=1772960830&width=220)
![IAG [08 - 14 WRX , 08 - 21 STI] PTFE Fuel Line Kit for use w/ COBB Flex Fuel Sensor - JDMuscleFuel Lines and FittingsIAG-AFD-2220](http://jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-fuel-line-kit-for-use-w-cobb-flex-fuel-sensor-5205824.jpg?v=1772964128&width=220)
![IAG [08 - 14 WRX , 08 - 21 STI] PTFE Fuel Line Kit for use w/ COBB Flex Fuel Sensor - JDMuscleFuel Lines and FittingsIAG-AFD-2220](http://jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-fuel-line-kit-for-use-w-cobb-flex-fuel-sensor-9294723.jpg?v=1772964128&width=220)
![IAG Performance [02 - 14 WRX / 07 - 21 STI / 08 - 12 LGT / 06 - 13 FXT] V3 Top Feed Fuel Rails Black | IAG - AFD - 2102 - JDMuscleFuel RailsIAG-AFD-2102BKBlack Finish](http://jdmuscleusa.com/cdn/shop/products/iag-performance-02-14-wrx-07-21-sti-08-12-lgt-06-13-fxt-v3-top-feed-fuel-rails-black-iag-afd-2102-2611020.jpg?v=1770331227&width=220)
![IAG Performance [02 - 14 WRX / 07 - 21 STI / 08 - 12 LGT / 06 - 13 FXT] V3 Top Feed Fuel Rails Black | IAG - AFD - 2102 - JDMuscleFuel RailsIAG-AFD-2102BKBlack Finish](http://jdmuscleusa.com/cdn/shop/products/iag-performance-02-14-wrx-07-21-sti-08-12-lgt-06-13-fxt-v3-top-feed-fuel-rails-black-iag-afd-2102-2980305.jpg?v=1770331227&width=220)
![Cobb [15 - 21 WRX 6MT] Stage 2 Power Package Titanium - Non - Resonated J - Pipe - JDMuscleEngine Package Dealscobb641X12TI](http://jdmuscleusa.com/cdn/shop/products/cobb-15-21-wrx-6mt-stage-2-power-package-titanium-non-resonated-j-pipe-2655222.jpg?v=1770336199&width=220)
![Cobb [15 - 21 WRX 6MT] Stage 2 Power Package Titanium - Non - Resonated J - Pipe - JDMuscleEngine Package Dealscobb641X12TI](http://jdmuscleusa.com/cdn/shop/products/cobb-15-21-wrx-6mt-stage-2-power-package-titanium-non-resonated-j-pipe-5956397.jpg?v=1770336199&width=220)