IAG Performance and Nostrum have teamed up to deliver the IAG Spec High-Pressure Fuel Pump by Nostrum. This direct-fit pump is tailored for 2015-2021 WRX and 2014-2018 Forester XT Subaru models equipped with the FA20F 2.0L engine. This Nostrum fuel pump upgrade offers increased fuel flow, optimizing your engine’s power output and performance.

Delivering up to 37% more fuel flow than the stock Subaru pump, the IAG Spec 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 High-Flow Direct Fuel Injector Set by Nostrum for 2015-2021 Subaru WRX. These injectors offer a 10% increase in flow over OEM Subaru injectors, opening up new potential for horsepower gains.

The IAG Spec 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.

• WHP potential on gasoline: 725 WHP (Calculated based on 6600 RPM power peak , 290 BSFC, 75% VE & 10% drivetrain loss)
• WHP potential on E85: 600 WHP (Calculated based on 6600 RPM power peak , 360 BSFC, 75% VE & 10% drivetrain loss)
• Tune Requirement: No
• Recommended Tuning Suite: COBB Accesstuner or EcuTek (also verified to work with MoTeC GDI ECU)
• Flow rate increase over Stock: 37% (1.37x)
• Geometric displacement: 1.57 cc/rev
• Max Operating Pressure: 150 bar / 15 MPa / 2200 psi

The IAG Spec 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.

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).

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.