I was hell bent on getting a Tahoe RST with Brembos to add to the mint GMT 900 2010 LTZ, that I"m keeping for my son to drive. I had read and really dug into all of the booming and vibration issues, but wanted to believe that GM had worked out a fix or a change in their process to eliminate them. I visited a large dealership that had tons of '17 and '18 models. I took a brand new 17 out for a ride with the salesman. (who was a nice kid, but knew zero about cars and less about the Tahoe K2XX models.) Wow, was I surprised...all of the complaints were true--in spades!! The '17 had tire balance issues and the boominess was painful. Just like when a kid with a couple 1,000 watt amps and subwoofers gets nearby at a red light...you can barely hear it, but your ears and head feel what seems like when you're climbing to altitude in an airplane, except worse!
We went back an found an '18 RST to drive. The 6.2 definitely hauls arse...hard to believe a 3 ton truck can move that fast! When on the highway, this particular truck didn't have the vibration issue, and the boominess was somewhat muted, but you could still feel the pressure change in your head. I am very disappointed that GM could put out a product that costs $60K to upwards of $100,000 for an Escalade. The RST I wanted was $80k...no way...I bought another Lexus GX.