oh my god! i could have possible brake failure because i put on a heavier rim and a bigger tire!--------what planet are you guys from? obviously i also went with bigger brake rotors and calipers! i also KNOW that the speedo reads 5 mph slower, so i don't get any tickets. i don't have any rubbing problems at all, (which i'm sure can be different with a different brand of tire!) Yes, before the header and the intake, it did dog the motor a little, but barely noticable. I've been drag racing cars for 22 years, so this isn't new to me. I'm not saying to go out and put the same combo on your car that i did, but if you don't try something new, your gonna be just like everyone else! How many p5's have you seen with lexus is300 wheels?