Nostrum Stage 1 Direct 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. The perfect injector upgrade for those Stock ECU 375 to 525 whp builds! 

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

 Fits all 2015-2021 Subaru WRX.