I just bought a set of RacingHart M5's. 17X7.5 & 17x8.5 stagger setup with 215x45x17 in the front and 235x40x17 in the rear. The wheels look great, the price was too good to turn down, but I am very disappointed. I lowered my car about 1-3/4", but the setup looks too small for my 2003 IS300. I should of at least gone with 18" wheels, but too late. I am wondering if I can go with larger tires in the front and rear to fill the wheel well. Maybe 225x45x17 in the front and 245x40x17 in the rear? Or bigger? Comments? Recommendations?