The computer...

 

I ran the Hypermax 300 on my 2002, and then went to the 330 when I added gauges. Hypermax makes very respectable power without the heat. I rarely saw 1,100 degrees, and averaged abou 600 while driving at 65mph. I rarely towed, but I ran the truck for a long time without gauges for daily driving, and Hypermax agreed they weren't needed with the 300 chip based upon their tests. If I had another 7.3, I'd do it all over again. Oh, I had a foam filter intake and 4" turbo back. It ran, but nothing like my 6.0L with Innovatives Street tune.

 

I don't know how far from Ft. Worth you are, but I would make the drive to see Tony Wildman, You can get the truck live tunned buy him and any changes made on the spot. www.totaldieselperformance.com

Tell him Marc sent ya.

 

Unless of course it was tuned (ECU flashed) with a handheld tuner.

I was going to say my choice would be an SCT (SuperChips Custom Tuning) tuner, but that would be spam apparently...