Need recommendations for inexpensive power cord


I’ve never used after market power cords and am considering buying a couple.  I have some questions:

Considering the astronomical price power cords go for, is there any point getting one or two in a lower price range?
At what price point do power cords start to make a difference in your system?
I have two monoblock NuForce class D 160 watt amps.  Is this where they should go? 
Can someone recommend an inexpensive power cord that can make a difference?

 
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I'm using the Atlas 4d power chord extremely happy with the performance . It's super vfm , I've tried many & Atlas was the one that added minimum to the sound. Just seems to improve on the drive.
Power chords like anything are system dependant & ofcourse your taste. Guess you should get a couple to play around From your audiophile friends before buying in.
All the best sorting it out.
Cheers
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F251245149226

£38 for 1m cable with sonar quest iec. Twisted 12? AWG Double shielded and occ copper.  I bought 4. They take 100 hours to burn in. Wish I had made this upgrade years ago. Transformed by system.