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Hoosier A6 tires on square setup (4xC5Z 18x10.5")

With the original staggered setup, it is not possible to rotate the tires to even out wear. A square setup solves this, as well as improving front end grip, changing the car balance from mild understeer to mild oversteer, which I prefer.

I managed to source a second hand set of 315/35-R18 Hoosier A6 mounted on replica C5 Z06 18x10.5" rear rims.

It will be interesting to see how the A6s perform on circuit racing, as they are designed for shorter autocross sessions generating less heat. To give the tires a chance to survive, I'm installing poly bushings and tuning in more aggressive suspension geometry settings (camber/caster/toe).