Colorado Techs:
GPS System
Nerf Bars/Torsion Crank

(note: colorado techs are on an external site)

Silverado Techs:
JP Customs S.W.A.C.
Perf. Acces. 3" Body Lift
Console & Carpet Swap
4 Pod Dash Housing
CB Radio in Console
Stereo Removal
Painting Techniques