Zl1 pump in stock SS: modest increase in flow. Not pressure.
Zl1 pump with module and no tune: same as above.
Zl1 pump without module and tune or no tune: same as above.
Zl1 pump with module and tune: the ADM module allows PWM modulation of the pump to increase flow and pressure as demand increases, as in the factory application.
ZL1 pump with BAP: the BAP increases VOLTAGE with a boost reference internal to the BAP.
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