I am looking into getting new rotors all around and i realized that the rear are more expensive then the fronts.....but they are both 10.2" in diameter....can i use the front for the rears or what? whats the diff??
You CAN get the rears vented as well, but with our cars, and stock internals, you aren't really generating enough heat on the rear discs to warrant high end vented rear brakes.
There are plenty of cheaper F/R vented setups available that work just fine, though.