Enhance the power and precision of your 2015-2021 Subaru WRX with our premium selection of fuel system performance parts, encompassing high-performance injectors, fuel rails, and fuel pressure regulators from industry-leading brands like IAG and COBB. Elevate your vehicle's performance to new heights by optimizing fuel delivery and combustion efficiency, ensuring a potent and exhilarating driving experience. Explore our meticulously curated collection of precision-engineered injectors, precisely calibrated to deliver the perfect fuel-to-air ratio for maximum power gains. Upgrade your fuel rail system with cutting-edge technology designed to enhance fuel distribution and reduce pressure drop, optimizing overall engine performance. Fine-tune your fuel system with precision using state-of-the-art fuel pressure regulators, ensuring consistent and reliable fuel delivery under varying conditions. Dive into the innovation and expertise of brands like IAG and COBB, synonymous with top-tier quality and performance. Whether you're aiming for track dominance or street supremacy, our expertly chosen fuel system performance parts, combined with detailed installation insights, guarantee a seamless upgrade process. Elevate your Subaru WRX's power and responsiveness with a fuel system that's engineered to deliver peak performance, enhancing every corner and straightaway with unrivaled precision. Explore our comprehensive range of fuel system components today and unleash the true potential of your Subaru WRX.
2015-2021 Subaru WRX Fuel System Performance Parts
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In StockRadium Engineering FPR Spring- Wide Range Use with Radium MPR, DMR, and FST-R
Fits: Universal
Only 1 leftRegular price $9.45Sale price $9.45 Regular priceUnit price per$9.95 -
Up to $1.25 off
In StockRadium Engineering 5/16in SAE Female to -6AN Male Low Profile - Universal
Only 7 leftRegular price $23.70Sale price $23.70 Regular priceUnit price per$24.95 -
Up to $0.75 off
In StockRadium Engineering Duckbill Valve - Universal
Only 7 leftRegular price $14.20Sale price $14.20 Regular priceUnit price per$14.95 -
Up to $1 off
In StockRadium Engineering -6AN Inline to 1/8NPT Female Fitting - Universal
Only 6 leftRegular price $18.95Sale price $18.95 Regular priceUnit price per$19.95 -
Up to $3.50 off
In StockRadium Engineering Fuel Feed Line Kit WRX 15-2020
Only 1 leftRegular price $66.45Sale price $66.45 Regular priceUnit price per$69.95 -
Up to $30 offBLOX Racing Fuel Management Unit Type-A 10:1 Ratio - Universal
Regular price $120.00Sale price $120.00Unit price per -
In StockWalbro 255LPH Fuel Pump for 89-98 Nissan 240sx
Regular price $76.00Sale price $76.00 Regular priceUnit price per$76.00 -
In StockWalbro 255LPH Fuel Pump for 00-09 Honda S2000
Regular price $76.00Sale price $76.00 Regular priceUnit price per$76.00 -
Up to $44 off
In StockAEM Flex Fuel Sensor 30-2201 w/ -6 AN Fittings | 30-2201
Only 4 leftRegular price $349.95Sale price $349.95 Regular priceUnit price per$393.95 -
![Radium Engineering [08 - 21 WRX STI EJ257 Only] RA - Series Fuel Pressure Regulator Kit | 20 - 0965 - JDMuscleFuel Pressure Regulatorsrad20-0965](//jdmuscleusa.com/cdn/shop/files/radium-engineering-08-21-wrx-sti-ej257-only-ra-series-fuel-pressure-regulator-kit-20-0965-1050469.jpg?v=1770318560&width=220)
![Radium Engineering [08 - 21 WRX STI EJ257 Only] RA - Series Fuel Pressure Regulator Kit | 20 - 0965 - JDMuscleFuel Pressure Regulatorsrad20-0965](//jdmuscleusa.com/cdn/shop/files/radium-engineering-08-21-wrx-sti-ej257-only-ra-series-fuel-pressure-regulator-kit-20-0965-5346760.jpg?v=1770318560&width=220)
Radium Engineering RA-Series Fuel Pressure Regulator Kit
Fits: 08-21 WRX STI EJ257 Only
Regular price $256.45Sale price $256.45 Regular priceUnit price per -
![Cobb [15 - 17 WRX] CAN Flex Fuel Upgrade + Fuel Pressure Kit - JDMuscleFlex FuelcobbSUB004WCAN1FFUP-FP](//jdmuscleusa.com/cdn/shop/files/cobb-15-17-wrx-can-flex-fuel-upgrade-fuel-pressure-kit-2565570.jpg?v=1770325399&width=220)
![Cobb [15 - 17 WRX] CAN Flex Fuel Upgrade + Fuel Pressure Kit - JDMuscleFlex FuelcobbSUB004WCAN1FFUP-FP](//jdmuscleusa.com/cdn/shop/files/cobb-15-17-wrx-can-flex-fuel-upgrade-fuel-pressure-kit-6469237.jpg?v=1770325399&width=220)
In StockCobb Tuning CAN Flex Fuel Upgrade + Fuel Pressure Kit
Fits: 15-17* WRX
Only 11 leftRegular price $1,280.00Sale price $1,280.00 Regular priceUnit price per$1,280.00 -
![COBB [15 - 21 WRX] Previous Fuel Pressure Sensor Kit to CAN FP Sensor Kit Upgrade - Harness ONLY - JDMuscleFlex Fuelcobb344750-UP](//jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrx-previous-fuel-pressure-sensor-kit-to-can-fp-sensor-kit-upgrade-harness-only-1795497.jpg?v=1770325398&width=220)
![COBB [15 - 21 WRX] Previous Fuel Pressure Sensor Kit to CAN FP Sensor Kit Upgrade - Harness ONLY - JDMuscleFlex Fuelcobb344750-UP](//jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrx-previous-fuel-pressure-sensor-kit-to-can-fp-sensor-kit-upgrade-harness-only-9648343.jpg?v=1770325399&width=220)
In StockCobb Tuning Previous Fuel Pressure Sensor Kit to CAN FP Sensor Kit Upgrade - Harness ONLY
Fits: 15-21 WRX
Regular price $139.00Sale price $139.00 Regular priceUnit price per$139.00 -
DELICOUS TUNING 15+ WRX DIT FLEX FUEL KIT | DT_WRX4_FFBT_V010
Regular price $690.00Sale price $690.00 Regular priceUnit price per$690.00 -
![Radium Engineering [15-21 WRX/STI] Fuel Pump Access Cover | 20-0746 - JDMuscleFuel Pumps and Accessoriesrad20-0746](//jdmuscleusa.com/cdn/shop/products/radium-engineering-15-21-wrxsti-fuel-pump-access-cover-20-0746-4071817.jpg?v=1781013553&width=220)
![Radium Engineering [15-21 WRX/STI] Fuel Pump Access Cover | 20-0746 - JDMuscleFuel Pumps and Accessoriesrad20-0746](//jdmuscleusa.com/cdn/shop/products/radium-engineering-15-21-wrxsti-fuel-pump-access-cover-20-0746-4541192.jpg?v=1781013554&width=220)
Up to $4 off
In StockRadium Engineering Fuel Pump Access Cover | 20-0746
Fits: 15-21 WRX/STI
Only 2 leftRegular price $75.95Sale price $75.95 Regular priceUnit price per$79.95 -
![Radium Engineering [08-21 WRX/STI, 05-09 LGT] V2 Fuel Pump Hanger for use w/ DW400 Pumps | 20-0781-00 - JDMuscleFuel Pumps and Accessoriesrad20-0781-00](//jdmuscleusa.com/cdn/shop/products/radium-engineering-08-21-wrxsti-05-09-lgt-v2-fuel-pump-hanger-for-use-w-dw400-pumps-20-0781-00-1683143.jpg?v=1781013620&width=220)
![Radium Engineering [08-21 WRX/STI, 05-09 LGT] V2 Fuel Pump Hanger for use w/ DW400 Pumps | 20-0781-00 - JDMuscleFuel Pumps and Accessoriesrad20-0781-00](//jdmuscleusa.com/cdn/shop/products/radium-engineering-08-21-wrxsti-05-09-lgt-v2-fuel-pump-hanger-for-use-w-dw400-pumps-20-0781-00-4343294.jpg?v=1781013620&width=220)
Up to $27 off
In StockRadium Engineering V2 Fuel Pump Hanger for use w/ DW400 Pumps | 20-0781-00
Fits: 08-21 WRX/STI, 05-09 LGT
Only 4 leftRegular price $512.95Sale price $512.95 Regular priceUnit price per$539.95 -
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In StockRadium Subaru Fuel Filter Mount WRX 15-21 / STI 15-21 / Impreza 2008-2014 / Forester XT 2008-2014 | 20-0605
Only 4 leftRegular price $75.95Sale price $75.95 Regular priceUnit price per$79.95
![Radium Engineering [08 - 21 WRX STI EJ257 Only] RA - Series Fuel Pressure Regulator Kit | 20 - 0965 - JDMuscleFuel Pressure Regulatorsrad20-0965](http://jdmuscleusa.com/cdn/shop/files/radium-engineering-08-21-wrx-sti-ej257-only-ra-series-fuel-pressure-regulator-kit-20-0965-1050469.jpg?v=1770318560&width=220)
![Radium Engineering [08 - 21 WRX STI EJ257 Only] RA - Series Fuel Pressure Regulator Kit | 20 - 0965 - JDMuscleFuel Pressure Regulatorsrad20-0965](http://jdmuscleusa.com/cdn/shop/files/radium-engineering-08-21-wrx-sti-ej257-only-ra-series-fuel-pressure-regulator-kit-20-0965-5346760.jpg?v=1770318560&width=220)
![Cobb [15 - 17 WRX] CAN Flex Fuel Upgrade + Fuel Pressure Kit - JDMuscleFlex FuelcobbSUB004WCAN1FFUP-FP](http://jdmuscleusa.com/cdn/shop/files/cobb-15-17-wrx-can-flex-fuel-upgrade-fuel-pressure-kit-2565570.jpg?v=1770325399&width=220)
![Cobb [15 - 17 WRX] CAN Flex Fuel Upgrade + Fuel Pressure Kit - JDMuscleFlex FuelcobbSUB004WCAN1FFUP-FP](http://jdmuscleusa.com/cdn/shop/files/cobb-15-17-wrx-can-flex-fuel-upgrade-fuel-pressure-kit-6469237.jpg?v=1770325399&width=220)
![COBB [15 - 21 WRX] Previous Fuel Pressure Sensor Kit to CAN FP Sensor Kit Upgrade - Harness ONLY - JDMuscleFlex Fuelcobb344750-UP](http://jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrx-previous-fuel-pressure-sensor-kit-to-can-fp-sensor-kit-upgrade-harness-only-1795497.jpg?v=1770325398&width=220)
![COBB [15 - 21 WRX] Previous Fuel Pressure Sensor Kit to CAN FP Sensor Kit Upgrade - Harness ONLY - JDMuscleFlex Fuelcobb344750-UP](http://jdmuscleusa.com/cdn/shop/files/cobb-15-21-wrx-previous-fuel-pressure-sensor-kit-to-can-fp-sensor-kit-upgrade-harness-only-9648343.jpg?v=1770325399&width=220)
![Radium Engineering [15-21 WRX/STI] Fuel Pump Access Cover | 20-0746 - JDMuscleFuel Pumps and Accessoriesrad20-0746](http://jdmuscleusa.com/cdn/shop/products/radium-engineering-15-21-wrxsti-fuel-pump-access-cover-20-0746-4071817.jpg?v=1781013553&width=220)
![Radium Engineering [15-21 WRX/STI] Fuel Pump Access Cover | 20-0746 - JDMuscleFuel Pumps and Accessoriesrad20-0746](http://jdmuscleusa.com/cdn/shop/products/radium-engineering-15-21-wrxsti-fuel-pump-access-cover-20-0746-4541192.jpg?v=1781013554&width=220)
![Radium Engineering [08-21 WRX/STI, 05-09 LGT] V2 Fuel Pump Hanger for use w/ DW400 Pumps | 20-0781-00 - JDMuscleFuel Pumps and Accessoriesrad20-0781-00](http://jdmuscleusa.com/cdn/shop/products/radium-engineering-08-21-wrxsti-05-09-lgt-v2-fuel-pump-hanger-for-use-w-dw400-pumps-20-0781-00-1683143.jpg?v=1781013620&width=220)
![Radium Engineering [08-21 WRX/STI, 05-09 LGT] V2 Fuel Pump Hanger for use w/ DW400 Pumps | 20-0781-00 - JDMuscleFuel Pumps and Accessoriesrad20-0781-00](http://jdmuscleusa.com/cdn/shop/products/radium-engineering-08-21-wrxsti-05-09-lgt-v2-fuel-pump-hanger-for-use-w-dw400-pumps-20-0781-00-4343294.jpg?v=1781013620&width=220)
