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 [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFabricationIAG-AFD-2344BK](//jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-8725612.jpg?v=1772948951&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFabricationIAG-AFD-2344BK](//jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-8520846.jpg?v=1772948951&width=220)
IAG PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails
Fits: 08-14 WRX, 08-21 STI
Regular price $2,169.99Sale price $2,169.99 Regular priceUnit price per$2,169.99 -
IAG PTFE Fuel System Kit w/ ID Injectors, Aeromotive FPR, IAG Fuel Rails
Fits: 08-14 WRX, 08-21 STI
Regular price $2,159.99Sale price $2,159.99 Regular priceUnit price per$2,159.99 -
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFlex FuelIAG-AFD-2346BK](//jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-8726580.jpg?v=1772948951&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFlex FuelIAG-AFD-2346BK](//jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-2973710.jpg?v=1772948951&width=220)
IAG PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails
Fits: 08-14 WRX, 08-21 STI
Regular price $2,089.99Sale price $2,089.99 Regular priceUnit price per$2,089.99 -
IAG PTFE Fuel System Kit w/ ID Injectors, Aeromotive FPR, IAG Fuel Rails
Fits: 08-14 WRX, 08-21 STI
Regular price $1,739.99Sale price $1,739.99 Regular priceUnit price per$1,739.99 -
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFabricationIAG-AFD-2346GD](//jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-9675806.jpg?v=1772948951&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFabricationIAG-AFD-2346GD](//jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-7349009.jpg?v=1772948951&width=220)
IAG PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails
Fits: 08-14 WRX, 08-21 STI
Regular price $2,089.99Sale price $2,089.99 Regular priceUnit price per$2,089.99 -
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFuel Lines and FittingsIAG-AFD-2346RD](//jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-2685692.jpg?v=1772948951&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFuel Lines and FittingsIAG-AFD-2346RD](//jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-8055253.jpg?v=1772948951&width=220)
IAG PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails
Fits: 08-14 WRX, 08-21 STI
Regular price $2,089.99Sale price $2,089.99 Regular priceUnit price per$2,089.99 -
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFuel Lines and FittingsIAG-AFD-2344RD](//jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-7042047.jpg?v=1772948952&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFuel Lines and FittingsIAG-AFD-2344RD](//jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-4146106.jpg?v=1772948952&width=220)
IAG PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails
Fits: 08-14 WRX, 08-21 STI
Regular price $2,169.99Sale price $2,169.99 Regular priceUnit price per$2,169.99 -
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFuel Lines and FittingsIAG-AFD-2342RD](//jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-8120488.jpg?v=1772948951&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFuel Lines and FittingsIAG-AFD-2342RD](//jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-2118445.jpg?v=1772948951&width=220)
IAG PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails
Fits: 08-14 WRX, 08-21 STI
Regular price $1,819.99Sale price $1,819.99 Regular priceUnit price per$1,819.99 -
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFuel Lines and FittingsIAG-AFD-2342GD](//jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-1689007.jpg?v=1772948953&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFuel Lines and FittingsIAG-AFD-2342GD](//jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-8751969.jpg?v=1772948952&width=220)
IAG PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails
Fits: 08-14 WRX, 08-21 STI
Regular price $1,819.99Sale price $1,819.99 Regular priceUnit price per$1,819.99 -
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFabricationIAG-AFD-2342BK](//jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-2678115.jpg?v=1772948958&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFabricationIAG-AFD-2342BK](//jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-7966279.jpg?v=1772948958&width=220)
IAG PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails
Fits: 08-14 WRX, 08-21 STI
Regular price $1,819.99Sale price $1,819.99 Regular priceUnit price per$1,819.99 -
Up to $500 offIAG 550 Long Block Engine w/ IAG 550 Heads
Fits: 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT
Regular price $10,499.99Sale price $10,499.99 Regular priceUnit price per$10,999.99 -
IAG 550 Long Block Engine w/ IAG 550 Heads
Fits: 02-14 WRX, 04-21 STI, 04-13 FXT, 05-09 LGT
Regular price $10,499.99Sale price $10,499.99 Regular priceUnit price per$9,999.99 -
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 $18,749.99Sale price $18,749.99 Regular priceUnit price per$18,749.99
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFabricationIAG-AFD-2344BK](http://jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-8725612.jpg?v=1772948951&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFabricationIAG-AFD-2344BK](http://jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-8520846.jpg?v=1772948951&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFlex FuelIAG-AFD-2346BK](http://jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-8726580.jpg?v=1772948951&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFlex FuelIAG-AFD-2346BK](http://jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-2973710.jpg?v=1772948951&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFabricationIAG-AFD-2346GD](http://jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-9675806.jpg?v=1772948951&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFabricationIAG-AFD-2346GD](http://jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-7349009.jpg?v=1772948951&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFuel Lines and FittingsIAG-AFD-2346RD](http://jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-2685692.jpg?v=1772948951&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFuel Lines and FittingsIAG-AFD-2346RD](http://jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-8055253.jpg?v=1772948951&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFuel Lines and FittingsIAG-AFD-2344RD](http://jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-7042047.jpg?v=1772948952&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFuel Lines and FittingsIAG-AFD-2344RD](http://jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-4146106.jpg?v=1772948952&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFuel Lines and FittingsIAG-AFD-2342RD](http://jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-8120488.jpg?v=1772948951&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFuel Lines and FittingsIAG-AFD-2342RD](http://jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-2118445.jpg?v=1772948951&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFuel Lines and FittingsIAG-AFD-2342GD](http://jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-1689007.jpg?v=1772948953&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFuel Lines and FittingsIAG-AFD-2342GD](http://jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-8751969.jpg?v=1772948952&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFabricationIAG-AFD-2342BK](http://jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-2678115.jpg?v=1772948958&width=220)
![IAG [08 - 14 WRX, 08 - 21 STI] PTFE Flex Fuel System Kit w/ FIC Injectors, Aeromotive FPR, IAG Fuel Rails - JDMuscleFabricationIAG-AFD-2342BK](http://jdmuscleusa.com/cdn/shop/products/iag-08-14-wrx-08-21-sti-ptfe-flex-fuel-system-kit-w-fic-injectors-aeromotive-fpr-iag-fuel-rails-7966279.jpg?v=1772948958&width=220)
