I would not recommend ps2 tires for lapping. They are good street tires but they are not track tires. I almost destroyed my brand new ps2 tires after 1 track event at thunderbolt NJ. And i was in 135i wich is lighter than e9x m3. My front tires were rolling over and riding on the sidewalls when got overheated. That is dangerous and could lead to tire failure. Sidewalls of this tires are not reinforced as much as other high performance street tires. Thats the reason they are a lot lighter than dunlop star specs for example. Iam not trying to scare you. Just my 2 cents
Last edited by Groundpilot; 07-18-2010 at 12:07 PM.