Keep your receipt...
Everyone I know who has purchased one of those things, has sent it back for a refund. I'm even putting an engine in his car now because of what we believe to be caused by the pcm and fuel/timing.
Far be it from me to bash a vendor (right guys?) But I wouldn't do it. period.
Now, I'm not sure if DHP is selling PCM's anymore or not, someone can say for sure...I don't see them on the major sites....but they're tried, tested, and proven. I don't know what Zooomer has going on with his programming, but I and a few of my close buds aren't convinced yet that they should even be selling them all....
ok, off my soapbox