Quote Originally Posted by VeYzZii View Post
What would you sacrifice?
Well think about it

By over inflating your tyres you have reduced their contact patch with the road. This leads to less drag which can increase fuel consumption but also has reduced grip (depending on how much you inflate them and how hard you drive), uneven tyre wear and a harsher ride.

I found with the S2000 that with stock rims and suspension, the factory PSI recommendations are perfect.