Gpriore, Take a look at the Mapleshaderecords.com website under Clearview Double Helix AC Power Cord. There is a Clearview AC Cord Kit to replace hardwired cords, without installing new IEC terminal on your component.
When I looked into the same topic, it was more cost effective to buy a Mapleshade power strip which actually made it sound as if my two different component hardwired power cords had been upgraded. I am still not sure how old cords can be made to sound so much better by adding to the original inadequate power cord rather than physically replacing, but it happens!
If you call their phone (301-627-7922) with question then someone answers right away, or gets back to you in a day or two.
Once, I got my call back from Pierre Sprey, himself.