Upgrading power cable to AQ Niagara 5000?

I have an Audioquest Niagara 5000 - and have found it to be very good.  I am curious - since the unit is highly effective at noise reduction - would it really benefit to have an upgraded power cable serving it? Isn’t that the idea behind upgraded power cords - they’re better at filtering and/or not adding noise.  But, if the Niagara is doing that, any difference from an upgraded cord?

I know I should audition for myself but I no longer live near a dealer who can help me with those auditions so I’d have to buy and return - a hassle for me - and for the dealer.

Thoughts?
Happy holidays to my fellow audiogoners.