Power cord replacement suggestions

@lak
Thank you
I am certainly not against trying out some PC but just did not like the idea of throwing money after hard earned money away for possibly very little return.
Before the esoteric i had a krell player and i thought the krell was superb, until i upgraded to the esoteric....yes there was $3k difference in price but it was a difference I could HEAR.
Not implying I am about to drop $3k on any PC but you get my drift, whatever I purchased I would seriously hope I could discern something.
However as it is probably the single area i have not spent any serious cash on I should take deep consideration on your suggestions

@uberwaltz,
I totally understand ;-)
The power cords I recommended to you, can be purchased new for between $160-$650, most around the average cost of $300.
I know there are a lot of other power cords available, but the ones I mentioned, I have in my two audio systems. I've also owned and still have some power cords that range in price between $1000-$6500.
If I had only known then what I know now I could have saved some dollars! LOL, part of the hobby and learning cirve.

I recently found great improvements in my system with the low end Silnote Posideon and Shunyata Venom 3 PC.  Both are around $100 and offer a 30-day trial period.  The Silver Ghost PC was also auditioned, but offered far less improvement in SC that the other two.  Start modestly and then move up the food chain, that is my best advice.  

@nutty, I tried on my previous DK Design VS1 MKII and my current amp, Audio Analogue Maestro Settanta (70). The Blue Heaven did have any effect on either of the integrateds

Manufacturers do not advise to change power cords.  They already had thought about it while designing, listening, showing, and selling the product.  Rest assure, they would not compromise their product over a stupid power cord.  If they could make it sound better with a special power cord, they would.