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IAG Spec High-Flow Direct Fuel Injector Set By Nostrum For 2022+ Subaru WRX

  • Backed by real installs and tuning experience at FAST of West Chester
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IAG SPEC HIGH-FLOW DIRECT FUEL INJECTOR SET BY NOSTRUM FOR 2022+ SUBARU WRX




IAG Spec Hi-Flow Direct Fuel Injector Set by Nostrum for 2022+ WRX

THE IAG SPEC HIGH-FLOW DIRECT FUEL INJECTOR SET BY NOSTRUM

IAG Performance and Nostrum have joined forces to develop the IAG Spec High-Flow Direct Fuel Injector Set by Nostrum. This fuel injector upgrade is a direct fit for 2022+ WRX, 2019+ Ascent, 2020+ Legacy XT Sport, and 2020+ Outback XT & Wilderness Subaru models equipped with the FA24 2.4L engine. These injectors not only boost fuel flow rate but also provide an OEM-quality spray pattern, ensuring an ideal air-fuel mixture for enhanced performance.

24% HIGHER FUEL FLOW

Delivering up to 24% more fuel flow than the stock Subaru injectors, the IAG Spec High-Flow Direct Fuel Injector Set maintains an OEM-quality spray pattern for reliable cold starts, idle stability, and quick throttle response. Pair these injectors with the IAG Spec High-Pressure Fuel Pump by Nostrum for 2022+ Subaru WRX for the ultimate fuel delivery package. This pump delivers a 37% flow increase over the OEM pump, unlocking new horsepower potential.

IAG Spec Subaru Hi-Flow Direct Fuel Injector Set by Nostrum

E85 COMPATIBLE

The IAG Spec High-Flow Direct Fuel Injector Set by Nostrum is compatible to run on E85 and blended ethanol fuels. E85 not only boosts horsepower but also offers a multitude of additional benefits; it burns cleaner and cooler than regular gasoline, it has a higher resistance to detonation (knock), and it’s a cost-effective alternative for race fuel. When properly tuned and paired with E85-compatible fuel system components, these injectors ensure consistent fuel delivery that can handle the demands of E85 and ethanol blends.

FUEL INJECTOR SPECS

  • WHP potential on gasoline: 600 WHP (Calculated based on 290 BSFC, 40% injector DC, 10% driveline loss & 20 MPa fuel pressure)
  • WHP potential on E85: 480 WHP (Calculated based on 360 BSFC, 40% injector DC, 10% driveline loss & 20 MPa fuel pressure)
  • Tune Requirement: Yes
  • Recommended Tuning Suite: COBB (WRX, Legacy, Outback, and Ascent – WRX only 2022+)
  • Flow rate increase over Stock: 24% (compared to stock flow of 14.146 g/s)
  • Flow rate: 17.5 g/s at 100 bar
  • Max Operating Pressure: 200 bar / 20 MPa / 2900 psi
  • Spray Pattern: OEM Comparable
IAG Spec Hi-Flow Direct Fuel Injector Set by Nostrum Specifications

STRAIGHTFORWARD INSTALLATION

The IAG Spec High-Flow Direct Fuel Injector Set by Nostrum is designed for a direct fit, and mount up just like the factory injectors. Nostrum's precise fitment, complete with all the necessary fittings and hardware ensures a straightforward installation without the need for modifications. The installation process only requires basic hand tools.

WORKS WITH COBB

Please note that tuning is required after installation of the IAG Spec High-Flow Direct Fuel Injector Set. Please see below for a list of Nostrum Certified Tuners. The High-Flow Injectors and Pumps are compatible with the stock Subaru ECU, and can also be adjusted with COBB engine management devices for even better results. (Fuel pump sold separately).

COBB Accessport
Nostrum High Performance

ABOUT NOSTRUM

Nostrum is a trusted name in the automotive industry, specializing in high-performance fuel system solutions. Their products are meticulously engineered and rigorously tested to meet or exceed OEM standards. Nostrum's dedication to in-vehicle development and calibration ensures that their fuel components are optimized for peak performance. Together, Nostrum and IAG have formed a perfect partnership to bring you the very best in innovative, high-performance fuel solutions for your Subaru.


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  • Backed by real-world installs
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Why Drivers Choose FAST of West Chester

  • I can't recommend this place enough. Being able to trust a shop in the performance world is big. The 2hr drive to get there, is worth knowing the job will be done right. Very happy to have found this shop, to
    support my builds going forward.


    Donald Wojnar
  • I recently had the pleasure of working with FAST of West Chester for some performance upgrades on my 2022 WRX, and the experience was nothing short of exceptional. I opted for a Borla S-Type exhaust and Cygnus Coilovers, and the team at FAST nailed the installation, fitment, and setup to a T.


    Adam Cranston
  • The team at FAST are excellence in every way. First, I consulted with Dave on mods for my HPDE track car. He listened and advised me on the best parts & mods to achieve my goals. He was patient & gave me space to research the options presented & worked with me through several changes before we built. Second, the build execution was flawless, proper heat shielding, bracing and poly everywhere. All components worked as advertised.


    Bryce Budd
  • This place has been my go to shop for all things Subaru. From simple service to performance parts and tuning, they have been top notch.


    William Brunell
  • Excellent shop. They installed a Cobb Stage 2 DP and Whiteline Sway bars and end links on my 2013 WRX. The work was done right and clean. The estimate was accurate. They were very knowledgeable, friendly and gave me the straight scoop on exactly what I was getting for the money
    and what I needed to get where I want to be with it. I'd recommend them
    to any car enthusiast.


    Devin Greco
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Does it come with a warranty?

Most products we carry include a manufacturer warranty. Since we work with top performance brands, warranty coverage can vary by product. If you have questions about a specific item, reach out — we’re happy to help.

Do you offer installation help or advice?

Yes — we don’t just sell parts, we install and tune them too. FAST of West Chester is a real performance shop, and we’ve worked hands-on with many of the products we carry. If you have questions about fitment, installs, or building your setup, our team can point you in the right direction.

How fast is shipping?

Many of our products ship the same day or next business day, depending on availability. We work hard to get parts out fast so you can get your build moving without delays.

What’s your return policy?

Returns for exchange or refund are accepted within 30 days of receiving your order. Items must be in new, unused condition and in original packaging. If you have any questions, our team will help make the process easy.

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