Powercord cinvert

I have felt like my system was complete except for power cords, interconnects, and speakers. Doesn't that sound stupid but my next step was working on those pieces. So just got the Morrow MAP3 power cord with upgrade terminals. Got it on the recent special they ran on audiogon. Oh my goodness, what a difference. Immediately noticable. No burn in that I can tell at this point. It is not a subtle change. I am not plugging Morrow. I am saying that  before this purchase I didn't believe that a difference could be heard.  Now, I am in shock that I was short sighted. I don't now audio terminology other than to say it is distinctly better to my ears. For those who care, I plugged into McIntosh MA2275 integrated unit.  McIntosh claims their units don't need upgraded power cords but today, I have found otherwise.  BTW, I did this on a whim since the price was so good. Happy I did.