210mm (Standard) BMW Differential Variable Lock Upgrade Kit
This is your kit you NEED for your E46 M3 LSD!
We've heard our customers loud and clear - you needed a solution for the 210mm variable lock differential - and we delivered.
This kit will bring your variable lock back to life. Included are 7 friction discs and 8 steels just like the factory, all at the very precise factory tolerances.
This kit does not require any machine work.
Our clutches are coated with a molybdenum traction surface and are specifically designed for the high temperature abuse situations that occur within the BMW differential. The clutches will retain the smooth limited slip engagement feel of the stock differential while providing long term durability. Our steel plates are precisely machined and hardened to ensure long term use.