Here's some instructions for installing the Pyro.
http://www.piersdiesel.com/TechPyroInstall.htm

I would suggest getting a pyro that reads to atleast 1600* and a boost guage that reads to 60PSI.

 

The gauges usually come with everything you need to install the except for the mount. Most guys are putting them on a pillar mount. The pillar mounts are reasonably priced and you can get a little spray bomb from the dealer for about $5 that will match your interior color perfectly.
I installed ISSPRO gauges and bought some green covers for the lights. They pretty much match the look of the stock gauges.

 

This article puts 12 valve hp modifications all on one page
http://www.cumminsdatabase.com/read.php?id=58

 

how much HP should I be getting now? Completely stock....

 

Your pump is rated for 180HP

 

OK, gauges (pyro & boost) on the way along w/ 4" exhaust!! I plan on installing the gauges first so that I can see a difference in the exhaust!! Any tips on any of the installs?? Never drilled and tapped through any thing this hard before. All tips and opinions welcome!!!!!!