In all honesty, you can get equal geometry improvements with bolt-on parts on your stock chassis for a LOT less money. The only real benefit I see over the right combination of bolt-ons is the added chassis rigidity.
The big rear tires are cool if you're not serious about road-racing/track days (which most of us aren't but if you are...), they will come up to temp much slower than the smaller fronts, effecting the balance of the car differently throughout the run... if it starts neutral, when the fronts get sticky it will go loose, then the fronts get too hot as the rears just start to get sticky and it goes tight. They also require running the springs/shocks further inboard negatively effecting the motion-ratios.
Edit: ...should add the big tires may help on a tight course such as an autocross, but likely a hinderance on a big course.
Last edited by Derek69SS; 09-23-2007 at 10:22 AM.
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