I put 76,000 miles on a stock clutch, 770 RWHP 4L Whipple/Borla headers and muffler. Had it custom dyno tuned and clutch took all I could give it.. It never gave out, I did a total go over the car at 76,000 miles. Tires are another story, barely got 5k on each set of Bridgestones (rears) I...