There's a few off brand tires from federal, Maxxis, etc that run from $104-150 or so. Onlinetires.com, discount tire direct.com, performanceplustires.com are all good site's. Online tires has the stock pirellis 245/45/19 on clearance for $146 I believe. They also have that pirelli in a 275/40/19 which fits just fine ( http://www.stangnet.com/mustang-forums/threads/275-40-on-cs-wheels.856834/) for $186. I just bought a set of Falken azenis 245/45 and 275/40 for $784 (free shipping discount tire direct) plus a $100 visa pre paid card so $684 really.