The amount of vibration is subjective. A few feel that our 88 durometer (stiffest mount) is unbearable and most feel it's perfect for all driving conditions. The e-mount really isn't a mount, it's more like a jelly filled donut. So, if vibration is a concern, I would stick with it.How much vibration compared to the stock E-mount? I have a daily driver and I don't want a bunch of vibration. I'd be happy to review it if it is suitable for DD.