R Owners - tire question

[AgSurfer]

After multiple track sessions this summer, my OEM Cup 2s are cooked and time to replace the tires. Curious if other R owners have tried different rubber than the Michelin Cup 2s, and if so, would you mind sharing your experiences. Also, anyone running 325s in the rear as opposed to the 315s? If so, how do you feel that impacted the driveability and handling of the car - on the road but more importantly on the track?

I finally ordered my spare set of rims for the R (Project 6GR have been back ordered for a while), and they are in transit. So I will be putting those on the R for a while, as I am sending the front CF rims off to get the inner barrel ceramic coating repaired. I might try different rubber on the spare rims and put new Cup 2s on the CF rims... a little research and comparison project per se.

Thanks for the input gents.

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[EuroKllr]

After multiple track sessions this summer, my OEM Cup 2s are cooked and time to replace the tires. Curious if other R owners have tried different rubber than the Michelin Cup 2s, and if so, would you mind sharing your experiences. Also, anyone running 325s in the rear as opposed to the 315s? If so, how do you feel that impacted the driveability and handling of the car - on the road but more importantly on the track?

I finally ordered my spare set of rims for the R (Project 6GR have been back ordered for a while), and they are in transit. So I will be putting those on the R for a while, as I am sending the front CF rims off to get the inner barrel ceramic coating repaired. I might try different rubber on the spare rims and put new Cup 2s on the CF rims... a little research and comparison project per se.

Thanks for the input gents.

I've had good results with the Falken Azenis RT660, which come in the stock tire sizes for the 350R. For me the RT660's perform as good on the track as the Michelin Pilot Sport Cup 2, but cost less. But tire performance on the track is very subjective based on driver ability & style (I have a tendency to be too heavy on the brakes), track conditions, camber & toe setup, etc.

Also, I've used Bridgestone Potenza S007A, 305 on the front, and 325 on the rear with the stock rims. The Potenza is a good street tire with a comfortable ride (no trameling), but doesn't have the grip of the RT660's or PSC2's. Also, I didn't like the look of the tire poke on the rear (about 1/2 inch).