I have that set up currently and I'm boosted. It's not twitchy, but with my current suspension set up there is more push or under steer than anything else. I need to tune it better for sure, but I think it would be less if I would get more square, 275 up front and go back to my Nismo sway bar in the back. Suspension tuning is critical, tire size, tire compound, springs, shocks and sway bars are a the real deal if you want to go fast, but for looks and dd you 315 and 275 are about the limit IMHO.
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