My differential that is. Want to do a bit of drifting in the e36, unfortunately LSDs are expensive and the open diff is garbage. I know ill need to weld it to have a chance of holding a drift (I’ll also need some more talent) but kinda dont want to ruin the streetability of the car.

Edit: also the excess tyre wear isnt a huge issue, I dont put masses of miles on it and currently have 3 sets of rear tyres...