another guage question

[Late Innings]

Thanks Rooster. I'm real new to the Diesel thing. Been lurking now for about 2 months having gotten the truck in July. Its an 06 King Ranch. Did the cab lights (clear with amber LED's), tinted the front windows and windshield strip, visors, exhaust (turbo back, cat and muf delete. Getting ready to gauge it, then run up some miles before considering a chip.
I really love this truck!

Thanks for your help!