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I search much time to google to find the flow rate ( cc/min ) from this bmw injector. It is Siemen injector from bmw e46 N42B20 . This is the bmw code 13537506158. I though to use it to my ITB build M42b18.
Have you considered testing it yourself, or sending it to someone that can test it.
Goodmorning , finally I check this injector but is very small 210cc/mm at 3.5bar.