IAG Spec High-Pressure Fuel Pump By Nostrum For 2022+ WRX

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IAG SPEC HIGH-PRESSURE FUEL PUMP BY NOSTRUM FOR 2022+ SUBARU WRX

THE IAG SPEC FA24 HIGH- PRESSURE FUEL PUMP BY NOSTRUM

IAG Performance and Nostrum have teamed up to deliver the IAG Spec FA24 High-Pressure Fuel Pump by Nostrum. This direct-fit pump is tailored for 2022+ WRX, 2019+ Ascent, 2020+ Legacy XT Sport, and 2020+ Outback XT & Wilderness Subaru models equipped with the FA24 2.4L engine. As the first and only complete high-pressure fuel pump upgrade for FA24 engines, this Nostrum pump offers increased fuel flow, optimizing your engine’s power output and performance.

37% HIGHER FUEL FLOW

Delivering up to 37% more fuel flow than the stock Subaru pump, the IAG Spec FA24 High-Pressure Fuel Pump by Nostrum provides plenty of fuel to allow for more boost at lower RPMs, resulting in an improvement in low-end torque. For the ultimate fuel delivery package, use this pump in conjunction with the IAG Spec FA24 Hi-Flow Direct Fuel Injector Set by Nostrum. These injectors offer a 24% increase in flow over OEM Subaru injectors, opening up new potential for horsepower gains.

E85 COMPATIBLE

The IAG Spec FA24 High-Pressure Fuel Pump 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 option for race fuel. When properly tuned and paired with E85-compatible fuel system components, this pump ensures consistent, high-performance fuel delivery, even under the tough demands of E85 and ethanol blends.

FUEL PUMP SPECS

WHP potential on gasoline: 725WHP (Based on 6500 RPM power peak, 290 BSFC, 75% VE, 90% driveline).
WHP potential on E85: 585WHP (Based on 6500 RPM power peak, 360 BSFC, 75% VE, 90% driveline).
Tune Requirement: No
Recommended Tuning Suite: COBB for WRX, Ascent, Legacy, Outback (WRX only after 2022 due to COBB support).
Displacement increase over Stock: 37% (based on 11.67 mm bore vs 9.98 mm bore)
Geometric displacement: 1.597 cc/rev
Max Operating Pressure: 200 bar / 20 MPa / 2900 psi

IAG Spec FA24 High-Pressure Fuel Pump Straightforward Install

STRAIGHTFORWARD INSTALLATION

The IAG Spec FA24 High-Pressure Fuel Pump by Nostrum is designed to fit directly onto the same mounting base as the stock Subaru pump. Nostrum's precise fitment, complete with all the necessary fittings and hardware ensures a straightforward installation without the need for modifications. With moderate mechanical experience, the installation process can be completed in about an hour using basic hand tools.

WORKS WITH COBB

While tuning isn’t necessary after installation of the IAG Spec High-Pressure Fuel Pump, it's highly recommended for optimal performance. The High-Pressure Pump and High-Flow Fuel Injectors are each compatible with the stock Subaru ECU, and can also be adjusted with COBB engine management devices for even better results. See below for a list of Nostrum Certified Tuners. (Injectors sold separately).

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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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

Real Answers From Real Builders

We install and test many of the parts we sell — so you’re getting real-world answers, not guesses.

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.