You can for example use a K&N KN-202 or a Fram PH6010A oil filter for this bike.
2,5L when oil filter changed
For the Honda Shadow VT600C, you need 2.1 liters for an oil change and 2.3 liters if you also change the oil filter. For the VT 750 Shadow, you need 2.4 liters, 2.6 if you change the filter. For the VT1100 Shadow Spirit you need 3.1 liters and 3.3 if you replace the filter.
The oil capacity of the Honda Shadow VLX 600 is 2.1 liters. There will be a little more oil required to fill the oil filter at the oil change.
2.5 liters with a new oil filter.
Under the rear of the engine.
2.8 liters without a filter change, 3 liters with a new oil filter.
Fram ph6017a
2.8 liters without a filter change, 3 liters with a new oil filter.
The Honda Service manual says that its capacity is 3 liters (3.2 US quarts)
3.7 quarts if replacing the oil filter at the same time.
Four quarts including a filter change.
No you don't have to drain the oil to change the stator.