Nostrum Performance Stage 1 Direct Fuel Injectors - 2015-2021 WRX

Nostrum upgraded DI injectors increases fuel flow 10% while retaining an OEM equivalent spray pattern. Stage 1's are perfect to bump that build! These injectors are compatible with the Stock ECU and require zero additional accessories or connectors (tuning with COBB Recommended). Easy to install, simple to tune; this price friendly stage 1 DI injector upgrade is the perfect injector upgrade for those Stock ECU 375 to 525 whp builds! 

Contents: 

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

Features: 

• +10% flow rate increase over stock 
• The only DI injector upgrade on the market for FA20F that works with stock ECU! 
• Set of 4 batched and serialized injectors with tuning data 
• E85 compatible 
• Direct Replacement - same outline as the OE injector
• OEM equivalent spray pattern 
• OEM ECU controlled (COBB tuning recommended) 

Performance Specs: 

• WHP potential on gasoline: 620 WHP (calculated with driveline of 90%, 61% duty cycle,  at 7000rpm, with 328 BSFC)
• WHP potential on E85: 460 WHP (calculated with driveline of 90%, 61% duty cycle,  at 7000rpm, with 444 BSFC)
• Tune Requirement: Yes
• Recommended Tuning Suite: COBB Access Tuner 
• Flow rate increase over Stock: 10%
• Flow rate: 15.7 g/s at 100 bar
• Max Operating Pressure: 150bar / 15MPa / 2175psi