I was wondering if I can get some input/advice on my tire set up. I have an IS250 AWD. My previous setup was 235/35/19 all around. Recently I found a used set of Potenza's RFT that is in great condition but the sizes are 245/40/19. The back fits fine but with the front I had to cut a lil plastic piece out so that it could clear when I steer. Also a little bump in the fender is rubbing every time I steer.

- I was wondering how people get it so flushed into the wheel well and not have it rubbing against the inner fenders? Do they remove the inner fenders? I want a really flushed look and want to avoid rubbing.

- With the look of the wheel/tire sitting well under the wheel wells, how do people do that? Are there problems with steering/rubbing in that kind of set up?

- What are your advice(s) when I lower the car. Would I be stupid or crazy to lower it with those thick tires on?