Jettcity: My 2016 Colorado Z71 came with a dealer installed BDS 5.5" lift, the cheaper of the two kits that reuses the factory coil-overs by adding extensions. It is important to note the following notes from BDS: "Stock 17" & 18" wheels can not be reinstalled with the lift kit. Aftermarket 20" wheels with maximum of 5.25" Backspacing are recommended - certain wheel and tire combinations will require weld on steering stops, these are included in the kit." This is because the kit uses new, taller knuckles to preserve the A arm geometry up front. I still have to order my full-size spare and try and sell the old one; the new one will not fit under the back so this is another challenge; finding a place for the spare.
As I bought the truck with the kit installed, I can't comment on the change in ride. The thing is a pickup truck so I expect the suspension at the back to be a little hard when the bed is empty. My truck is really stable at highway speeds and cornering so I'm really happy with the ride. There is cutting involved; take a look at the instruction manual on the BDS website; there is some frame cutting required and some simpler trimming of the bottom front ends of the front wheel wells. The Colorado/Canyon front wheel wells are tight; I put Bushwackers on and the driver's side front tire rubs occasionally on the bottom rear part of the flares. Before the flares were added all was OK.
I hope this helps.
Rick 2016 Colorado Z71 Crew Cab, long bed
BDS 5.5" lift, Fuel Vector 20x9 rims, Toyo Open Country AT II Extreme 305/55R20 tires
Bushwacker pocket fender flares