Modifications to date:

Smarty, Jr.
Silverline 304 turbo-back exhaust.
ISSPRO gauges: pyro, fuel pressure and boost -- mounted on the dash.

Pioneer AVIC-D3X stereo with Sirius and the iPod connect.
TruXedo Deuce bed cover.
Yakima rack system across the bedrails, Depends on what I'm using it for, but I have the ski and bike racks, the Load Warrior basket with net, and one of their weatherproof bags.

I became an AMSOIL dealer...

I bought the truck in February '08. It's a 2005 deep molten red SLT quadcab, 4x4 automatic. Came with 3.73 gears, Infinity speakers, towing... I think that's all the non-standard highlights.
An older gentleman had the truck since new, and had only put 27K miles on it.
This was my first diesel, and having the last name Cummins, I figured I really didn't have to look around at other brands.
I was considering, at the time, putting a 4BT Cummins into my '94 Land Cruiser,...