Tyre Pressures on an E46 with Pilot Sports

[bread1981]

Hi,

I recently purchased a new set of pilot sports, they probably done about 800 miles now. Their preformance has somewhat decreased over this time, the car's starting to understeer. I'm sure that I'm running the wrong pressures and wanted to know what people would recommend.

I'm going to the Le Mans classic in a couple of weeks which means it will be driven a bit harder then usual.

Any ideas?

Cheers