Originally Posted by Nigelo
Mentioned this in the M3 diff thread, but thought I'd ask in a higher traffic area!
I've managed to get an entire rear M3 subframe (diff, brakes, roll bar, the lot!)
Rather than removing the diff and drive shafts for installation into my 335i, can I just swap over my 335i hubs and brakes onto the M3 subframe and fit the whole shebang in one go?
The rear M3 sway bar is too stiff for non-M3 and you will lose traction unless you have LSD. There are several posts about this. The M3 weight and power are higher obviously and some parts will actually decrease performance on non-M3 and cost a lot to install.
As mentioned above, it's a rabbit hole but don't spend money and time to screw up BMW engineering lol