I have about 4300 on mine....& they still have lots of tread left.....1 track day or 5 20+/- minute sessions + a bunch of burnouts-Launch control....I would guess 15k at a minimum, probably more like 20k+ before they are gone
2008 E92 M3, MR, DCT, extended BB leather, loaded!
1988 Porsche 928S4, Guards red/Champagne leather
1989 Porsche 928S4 track beast!!!