IAG Performance IAG Spec High-Pressure Fuel Pump By Nostrum 2015-2021 WRX / 2014-2018 Forester XT Premium

Description

• 37% More Fuel Flow: Delivers up to 37% more fuel than the stock Subaru pump, improving low-end torque and supporting higher boost levels at all RPMs.
• E85 Compatible: Supports ethanol and blended fuels, offering cleaner combustion, higher detonation resistance, and race-ready performance.
• Performance Potential:
  • Gasoline: ~725 WHP potential (based on 6600 RPM, 290 BSFC, 75% VE, 10% drivetrain loss)
  • E85: ~600 WHP potential (based on 6600 RPM, 360 BSFC, 75% VE, 10% drivetrain loss)
• Specifications:
  • Flow rate increase: 37% over stock
  • Geometric displacement: 1.57 cc/rev
  • Max operating pressure: 150 bar / 2200 psi
  • Tune Requirement: Not required, but recommended for optimal performance

Direct-fit design mounts to the stock Subaru pump location, with all necessary hardware included. Installation takes about an hour with basic hand tools.

Compatible with stock ECU and tunable via COBB Engine Management Devices. For maximum performance, pair with the IAG Spec High-Flow Direct Fuel Injector Set by Nostrum (sold separately).