I just got a set of Pirellis for FREE (plus $40 for shipping), but I don't really want them since my current tires the ES100's have plenty of tread left. Now I'm heading to the track in a few weeks so I figure that if the Pirellis are better then I'll put them on. Which set should I use?

The PZeros look cooler...with the red print and all :)

I ran ES100s for my first few track schools and they worked great. And if it rains, everyone will be on ES100s. Run them until they are gone, then throw on the pirellis. All performance street tires are about the same on the track. they get hot and greasy and the grip goes all to crap anyway.

I ran ES100s for my first few track schools and they worked great. And if it rains, everyone will be on ES100s. Run them until they are gone, then throw on the pirellis. All performance street tires are about the same on the track. they get hot and greasy and the grip goes all to crap anyway.
Alright I'll just keep them on.

Is your car done yet?

Alright I'll just keep them on.

Is your car done yet?
As of thursday the M3 was stripped and my car was ready to go in. I am going down tomorrow to check progress.
only 26 more days until track school!!