IAG Performance IAG Spec High-Flow Direct Fuel Injector Set By Nostrum 2015-2021 WRX / 2014-2018 Forester XT

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 2015-2021 WRX equipped with the FA20F 2.0L 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.

Delivering up to 10% 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 2015-2021 Subaru WRX for the ultimate fuel delivery package. This pump delivers a 37% flow increase over the OEM pump, unlocking new horsepower potential.

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 option 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.

• WHP potential on gasoline: 620 WHP (Calculation based on 10% drivetrain loss, 61% duty cycle, 7000 RPM 328 BSFC)
• WHP potential on E85: 460 WHP (Calculation based on 10% drivetrain loss, 61% duty cycle, 7000 RPM 444 BSFC)
• Tune Requirement: Yes
• Recommended Tuning Suite: COBB 
• Flow rate increase over Stock: 10%
• Flow rate: 15.7 g/s at 100 bar
• Max Operating Pressure: 150bar / 15MPa, 2200psi

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 takes about an hour and requires only basic hand tools for those with moderate mechanical skills.

Contents: 

• Set of 4 injectors, tested & batched set with serial number
• Installation instructions 
• Tuning guide (Dealer & Certified Tuners only) 

Frequently Asked Questions:

Q: Is a tune required? 

A: A tune is not required to start the vehicle, but to maintain drivability a full tune is recommend after install. 

Q: Are these injectors Ethanol compatible?  

A: Yes, these injectors are fully ethanol compatible 

Q: Can I use these injectors in my BRZ’s FA20A engine?  

A: The FA20 found in the BRZ runs a completely different style of direct injector and are incompatible with these upgraded WRX injectors.