[SuperFreak]

Performance tires don't last to long, especially if the car is "pushed" into corners. So much depends on how you drive and where you drive.

10K to 20,000 miles I would estimate average life

I agree, but if you have some heavy track time in the mix, that could be shorter. We went through a set in about 2600 miles of heavy track time.

 

[SuperFreak]

I believe everyone will get around 8k-10k...again depends on how you push it. We have had an IS-F were I work for 1 year and the tires were done at 9,500...being pushed hard.

You've had an IS-F at work for a year now?!? Where do you work?