Originally Posted by cvc 22349a
LSD=#1 mod for 335i. If you're adding stiffer springs, increasing grip and/or torque I'd do the rear subframe bushings first otherwise the rear end will move and bounce all over the place.
I have experienced that a little, but frankly the car is so much more planted now that its hard to find fault. The rear is still a little bouncy but the ridiculous left-pull is "mostly" gone with the GC toe arms, I'd imagine with the subframe and diff bushings it will be completely gone. Obviously traction will be improved greatly with the LSD as well. I just thought the suspension would benefit me more going around the corners at the track than the LSD, so I did that first. Still going to do both.