Nithmo

Sigh... I ended up going with Cooper Zeon RS3-S tires.

I was able to get them in 325s and admittedly, they were cheap as ****.

I get the feeling these tires kind of suck (who buys coopers?), but, given that I've upped the tire width by so much, I'm still hoping these provide way better grip than the stock Bridgestone S001s. Those things were god awful and I chewed through 60% of them in one autocross day.

Being in Canada, all in, with shipping and taxes and everything, I paid about $1250 for all four corners. I'd otherwise be looking to spend about $900-1000 more for Michelin PS4s. I really didn't want to pay over 2k for tires, that may or may not last more than 1.5 seasons!