I installed some firestone helper bags in the rear of my Silverado approximately 500miles ago. (For clarification sake, its a 2015 crew cab 6.5ft 4x4 5.3l config.) Just thought I should post up what I thought about them so far. So far they have been nothing extraordinary, by that I mean they haven't hindered the vehicle in anyway driving regularly unloaded. Instructions say to keep at minimum 5psi in them at all times, and at this pressure I think they may even add to the in town ride quality, whereas on the hwy its just the slightest tad more firm. Rear of the truck seems more stable and planted, but not in a huge way just a subtle nod on the better side. The kit makes absolutely zero noise or squeaks which is honestly what I was most worried about for day to day driving. Kit went in, parked on my gravel driveway and only took about 1.5hrs. I don't have any info yet on loaded ride quality but soon time will tell. I'll throw in a pic on the kit on the truck, please shield your eyes from the Wisconsin weight reduction beginning to take place. All in all, very pleased with the kit, glad they even included a heat shield for the driver side bag. My coworker swears by these bags over the airlift brand ones. Hopefully a compressor/controller kit and a gauge next.