I have a jet chip on my car and I don't think it did anything (RIPOFF). Buy yourself a timing light and retard the timing while jumping the service connector at normal engine temp. I think all the jet chip does is increase your fuel curve a little-thats it. The chip is a scam. Funny how even though I have the chip my timing is advanced already to 19 deg and for the past year I had it that way I didn't detonate with this chip.
Integ97VTEC: I think you should sell that JET ECU on ebay and make a quick 300 bucks (or more) and buy another GSR ECU thats stock. Then go ahead with your nitrous setup. Did you notice any power gains with that JET chip? I didn't.