When I got my car it had 98,000 miles on it; at around 104,000 it started slipping.. worse and worse to the point where it would slip in 5th gear
The clutch material itself had quite a bit of life on it still but the rivets that held the disc together were shot.. it pretty much fell out when I took the transmission out
Now i've got a SPEC Stage II Kelvar clutch; up to about 147,000 miles now.. luv it

Super grippy, it'll spin the tires when I downshift to 2nd [dunno if its good or not but it sounds neat]