This. 100%. I own both an FE1 and FE2 C8. I have 3000 miles on the FE2 and 1400 miles on the FE1. The difference is stunning. But you won’t always notice it…. But when you do…it’s night and day. For example, I most notice it in three situations. Poor road conditions, exit/on-ramps, and highways with the obnoxious concrete sections. More later.
This is the most important reason to get FE2 on a non Z51.
So with nearly 4500 miles shared between two C8s, both non Z51, one with FE1 and one with FE2, IT’S SO WORTH THE MONEY in my subjective opinion.

On crappy roads the FE1 feels fine. The C8 is just a great car. But with FE2 on the same road, the car just doesn’t transmit every bump to your body. It’s noticeably better. This is when I most notice it. You won’t notice this benefit on average or freshly paved roads.

When you take an on-ramp or exit ramp, the FE1 does a slight lateral jump on every grove between concrete sections. That jump is unsettling to your stomach if you’re pushing the car. Say for example slightly fast on the ramp, 10-20 mph posted speed. This jump makes your stomach drop each time. With FE2, I don’t notice any lateral translation of the car—even in tour. If you really want to stay planted, Sport provides an even better glued feeling. This difference is subjectively very noticeable and likely objectively measurable.

A similar thing happens on long stretches of highway with the concrete sections. Every second or two the vehicle hits another section. It can be quite monotonous. I’m sure you know the feeling. With FE2, these roads in Tour are tolerable as opposed to the FE1 ride which is annoying. No lateral translation, just a jolt to your spine every second which to me is like Chinese water torture.

FE2 is a must have for the value it provides. Don’t listen to the salesman at Kerbeck.

I know many of you won’t have the luxury of driving both before deciding. Here’s a way to test it out yourself: Go test drive two Tahoes at your Chevy dealer. One a Premier and the other an LS or LT. Take each on a crappy road or better yet a dirt road to see the benefits of MSRC. This dramatic difference will change your opinion forever. We did this before purchasing my wife’s 2016 Gen3 MSRC LTZ Tahoe (LTZ is now called Premier). The LT shocks (which they called ‘premium’ air shocks) about put my wife’s head through the roof on the dirt road at 45 MPH. I then test dove the LTZ with MRSC on the same road at 45 MPH and it was like riding in a caddy. Years later, I wouldn’t even test drive the LT when we bought our ‘21 Tahoe. We just bought the Premier because the MSRC is night and day better. And the Gen4 is way better than the Gen3. See Zmurgy’s full write up above. (Ever wonder why Ferrari bought this technology from GM?)

None of this is a “must have” or “necessary”. Plenty of folks buy their C8 Corvettes and keep them in their garage so they never see rain, the paint is flawless and low mileage for the next owner. If you’re going to daily drive your C8, (like I do) you won’t regret the tangible feel MRSC provides this luxury supercar.

I don’t always drive my C8, but when I do, I save the wave.