Paul,
My Toyo's are not stock size, they are 225/50's which are too wide for the stock rims, that's why i'd like to get some 16x8 wheels for a better fit, and better response/handling. The reason why i incresed the tire pressure, is that i found it odd that i was 'breaking loose' so easily on the front. The tires are rated for 44psi and when i increased the pressure i noticed a great improvement in response and grip.