I think it is good for model years 01 to 10, might be wrong.
2004 Silverado LT LB7
Moded air box with custom 5 inch Steel tubing, Full EGR delete with fed up pipes, IAH Delete, fed y bridge, PPE Turbo Horn, shortened drive belt, LBZ CP3 running LB7 FPR, port/polish on IHI with rebuild, Batmo Wheel, PPE boost valve, 3.5 inch down pipe, Full turbo back 5 inch exhaust, Airdog 2 165, red head power steering gearbox, Tie Rod Sleeves, Cognito control Arms, Cognito pitman and idler arms, EFI Cory Willis Tunes, all aluminum transfer case, 33x12.5 nitro a/t on 20 inch Rhino lined American Racing Rims, 4 pair high discharge LED lights behind grill and under trailer Hitch, 325k miles, Rhino Lined bull bar, Bushwacker pocket style riveted fender flares painted to match, Triple Glowshift Gauge A-pillar with Boost/EGR/Low side fuel pressure @ lifter pump, LG Tablet by Verizon on flex pedestal running Torque Pro for real time logging/detailed measurement in realtime/gps speed logging.