Newbie question about DRV8825 and prusa i3

Just got my first kit and I m almost done building it. I m stuck with the bios config because I chose the Drv8825 (I thought smaller step=better quality).
I m trying to alter these settings
#define DEFAULT_AXIS_STEPS_PER_UNIT {160, 160, 5120,600} // default steps per unit for Ultimaker
#define DEFAULT_MAX_FEEDRATE {250, 250, 3.3, 25} // (mm/sec)
#define DEFAULT_MAX_ACCELERATION {3000,3000,100,10000}

In the official I3 rework wiki the author writes that the numbers must be half for the drv8825 but elsewhere I see that they must be double?
Tried to use the online calculator, more confussion for me
And everything I found was for the first line #define DEFAULT_AXIS_STEPS_PER_UNIT .
But I changed also the extruder controler so I should get half the filament/sec or not?

What should I do?
I use the normal I3 bed 20x20 with the E3d V6 head.

If the Drv8825 is is 1/32 micro stepping mode, then the steps/mm must be double that of a standard driver that is only doing 1/16th micro stepping

It only changes the steps/mm (tuning of max feed rate and acceleration are done separately)

Thanks for the reply. I made the changes needed and now every motor works.

I'd also point out that the value from the online calculators is a good starting point. You will want to calibrate each axis and the extruder and adjust the steps/mm to be as accurate as possible.

Paul.