2013 Chevy Express 3500 Passenger Van - Suspension Upgrade

mcsurveyor and comanche38,

Both of you have done the Bilsteins upgrade? Did you do this yourself or did you have a shop do it? Does the ride improve by making the ride any smoother or does it just get rid of the underdamped situation?

Also, does it have to be Bilsteins or KYB shock upgrade or will Monroes do it too? My mechanic swears by the NAPA shocks that are made by Monroe. Just wondered if I had him do it if I just have him use his normal parts supplier or if I show up with Bilsteins and let him put them on.