Subaru Forester Outback Nissan Infiniti Fuel Injector 16600-RR543 OEM Replacement

Subaru Forester, Outback, and Nissan Infiniti models with SR20/RB25 engines use injector nozzle 16600-RR543, a factory replacement grade part. It atomizes fuel precisely and injects into the cylinder to ensure optimal air-fuel ratio; pressure and voltage parameters are matched to original vehicle standards. Installation difficulty moderate; suggested labor 1.5-2 hours; replace seals to prevent leakage. If idle jitter, weak acceleration, abnormal fuel consumption, or MIL lights up, likely injector nozzle aging.