Although I never experienced the terrible wheel hop and engine hitting the firewall often talked about here as a reason to change the rmm, I installed a cp-e mount and at least for me, the nvh penalty was too great. It really was a dramatic difference in noise and vibration, so I put my stock rmm back in. But here is something I noticed--C J Pony Parts has lots of installation videos on YouTube, as does Boomba and others. These are a great help no matter what brand part you are installing. Before doing my rmm, I watched the video on installing a Cobb rmm, and near the start of the video the guy had the OEM mount that came out of the car in his hands, and he could easily deflect the large side rubber mounted bushing just using his hands. There was a ton of flex in the stock rmm. In contrast, when I pulled out my stock rmm, it was hard to move the bushing in the rubber at all. You can get a little movement, but not much. It makes me think that maybe Ford stiffened thing up a bit, at least on the 2017s, and maybe that is why I am not feeling all the issues with the stock mount.