Originally Posted by HP Autowerks
We didn't see a need to use any of the M3 rear suspension links as most are similar to the 335i, minus the lower control arm and maybe one other link. Our R&D stopped there....can't really tell you of all links will swap over.
The front links and thrust arms are much more criticle in keeping alignment in check and get rid some of that understeer.
As with the rear subframe mounts....you are on the right track!
This will take away all the funny business the rear-end is trying to do! Minus the dog-leg burnout of course. You will need a Quaife ATB or similar LSD for that.
I had the first Quaife in NA so that is not a problem. I am pretty close getting this car setup now but one problem is linked to the next and these bushing have to go as they will not work with stiffer springs predictably. Thanks for the info BTW….