Honesty no, because I don't return stuff very often.
I did however read the description of what they said it does and it said "all cylinders, all the time". Which I later found out to be a lie (and they knew it was lie before sending out the very first device).
Having been a long time gear head I mistakenly assumed Holley was still a reputable company (I've used their products for literally decades). Apparently since they're now owned by Sentinel Capital partners (a private equity firm, because private equity firms do great things in the automotive aftermarket industry,,, just look at what private equity did for Wheel Pros and all their brands like Hoonigan and 4 wheel parts) they are now Holley in name only, and are just another company selling stuff based off brand recognition, from a brand they purchased.
To be clear, all I want is the product to do what they said it would do, nothing more, nothing special, just turn off the DFM. And YES i am 100% going to tell everyone I can, every chance I get, what a rip off, lying, and under-handed company that Holley (or more correctly Sentinel Capital Partners) is now.
They ripped me off, and yes that pisses me off. Best I can do is hope that I can help to prevent them from ripping off the next guy.
...
Do you want to sell it?