Volkswagen Front Oxygen Sensor 0258030127/0258030128/04E906262BH High-efficiency detection

Subaru Polaris? High-flow fuel injector, OEM 100-3009; precision machined materials with higher fuel pressure and temperature tolerance. Increases fuel atomization and improves combustion; suitable for high-load or tuning needs. Part numbers 1955000281 and 16611AA810 for reference. Replacement difficulty medium; requires removal of fuel rail and lines; experienced technician recommended to avoid sealing leaks.