Thanks, guys. I just got off work so it's time to play (experiment). I'll let you all know the verdict

 

So I updated my hypertec before tuning my rig...no problems I DID pull fuses M10, M12, and M13...better safe then sorry. Running the programmer was easy and flawless. My only error was to be sitting in the jeep. Had to stay put for the duration--about 25 minutes How boring! Anyway, the performance was noticeably better: quicker throtle response, bigger balls @ lower RPM, ect. Time will tell concerning MPG's. Speedo calibration for 35's seems to be good, though it feels slow. Stock (32's, 4.10's), I was 2000 on the tach @ 55 MPH. I'm now 62 MPH @ 2000, or about 1800 RPM @ 55. Does this seem about right?

Anyway, so far I love the thing, and would say definitely a well-spent $379

((did I mention FREE next day shipping))

 

Yeah, I should have given you a heads up on the boring part. I've learned to roll the windows down and take the "reading\writing" time to play with the dogs.

 

I don't know but I do not pull any fuses for the Sirius radio (I have it), I don't think it requires a fuse pulled anymore if you update.

 

I updated, but still needed to pull fuses. Of course, I am very computer illeterate, so I probably didn't do something right. I can pull a mean fuse, though...

 

Well, after updating my software, I pulled the 3 fuses and got a "programming has been interrupted...returning to factory settings" message after the code search. Tried with fuses in and got the same result. Any pointers?