Well IMO you could be very competitive if you didn't care about destroying your car and not getting any insurance payout. 2:50's would be 2:40's... R Comps probably give you another 5 seconds per lap... and then suspention/power the rest. It really comes down to how big your nuts are, and how late you are prepared to brake and how early you get on the power LOL.

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2016 Levorg GT-S
Old man spec.