See, I have a set of PSS springs here - they said (back in the E46 days) the rates between the PSS/10 were the same. Now I don't think that's the same between a M and non M (IE a M3's PSS spring rates aren't going to be the same as a 330i's PSS10)
I wonder what the spring rate differences are between them?
Anyhow while I was writing this, I found what I was looking for:
https://f87.bimmerpost.com/forums/sh...8&postcount=14
PSS10 M2 are supposedly 514F/800R Progressive?
I have PSS with Linear 350F/900/R for flat ride frequency.
I'll have less power and tire, and likely less total grip - and less race pace. How far off is all of this worth?