First, my goal is to see if I can make my E90 335i more comfy. Right now I have OEM ZSP sport package springs and Koni FSD shocks (which are softer than OEM on light bumps but much stiffer on big dips on crappy roads, unfortunately).
I found out that 128i/135i shocks and springs fit into the E90...
And I looked at their spring rates and they are a little softer (probably because the 1-series is lighter), which is what I've been looking for.
Seems like it could work nicely to get a more comfy (and less sporty obviously) ride without too much cost... (vs. buying a new car, which is what I'm still leaning toward).
Would there be any rubbing or other issues if I did this? Seems like a handful of folks have tried (per other threads I found), but I didn't see anyone reporting on their experience after the switch.
Any thoughts/advice? And sorry for all the posts on this topic... obviously a tricky decision because it's still so hard to find something that can do all the great things the 335i can do while being more comfy and not super expensive again.
Thanks!