[inTgr8r]

Originally Posted by Finnegan

I have the 80 version on my subframe. No real NVH increase. https://powerflexusa.com/howtochoose.aspx

Subframe is not usually a problem, you can go completely solid alum. and not get NVH.
......as long as you still have some isolation on the sub-components.

BMW is now running solid subframes on GTS etc.

I'm installing solids on my M3 subframe with powerflex purple on the diff, so I guess I'll soon find out first hand :