What in the world are you doing with a HD 2500 Silverado?
I used to have a Ford F 350 heavy duty long bed with the big diesel engine. But that was my son's and mine "shop" vehicle for offroading. We had an ATV and a little shop in the in the back, and pulled my Jeep on a trailer behind when we went out to Colorado and Utah for offroading. I sold all that stuff, when I moved to Florida. Now I meet up with my son, and we go either in his Jeep, or I rent a Jeep modified for offroading.
The only "truck" I have left, is my motorhome on the F53 chassis (F550) with the V10 engine. I had that tuned by 5Star and Banks, and It should be good for about 450 hp now. I have not tested for the time to 60, but that baby can scream, and I bet it does a pretty good time!
i have to remember that trick with the cops, I could play that old, partially senile grandma, who was not able to see all those speed limit signs!