I run negative 3 up front and 2.1 rear. I didnt see huge difference from stock in around town driving when going straight or on the highway. I dont drive M3 daily. I havent run the alignment enough to comment on tire wear.
My tires are worn from 4 track days, especially both left tires from clockwise driving in Buttonwillow. Interesting that my OEM Contis are worn mostly in the middle to a degree when the sides are higher by a couple of millimeters, I'll post a picture. I did 3 events with stock suspension and stock alignment and 1 last event with KW CS and track alignment. But I noticed this tire wear before. Tire pressure 38-40 hot
