The above you listed are a UPGRADE from factory. The ZR2 does come with DSSV`s dampers standard. The first truck in the world to get them. 2017- present. The SILVERADO ZR2 gets them next year. This is what make`s a ZR2 different from a regular Colorado.
3.5" Wider Track
2" Lift
Multimatic Dynamic Suspension Spool Valve (DSSV) Dampers
Electronic Locking Front and Rear Differentials
Longer, Cast Iron Control Arms
Aggressive Front Bumper and Grille with Improved Approach Angle
Redesigned Rear Bumper For Improved Departure Angle
Cowl-Style Hood with Black Insert
Wider Fender Flares
Aluminum Skid Plates to protect radiator, oil pan, and front differential
Rock Sliders
New 17x8 Wheels with 31" (265/65R17) Goodyear Wrangler Duratrac tires
"Off-road Mode" alters throttle progression, shift calibration, traction control, stability control, and ABS for different terrain.
Optional Bed-Mounted Full Size Spare Tire
Optional Carpet Delet
A good read on the the stock ZR2 dampers...
Chevrolet Colorado ZR2's advanced suspension makes Formula One weep - Roadshow