275/45/19 are almost the exact same size. Only issue would be width rubbing. On our car, 3 sizes up works perfect, but you would have to check on forums with your particular vehicle and ask that question or search. We have these General Grabber UHPs, they are quiet, grip awesome, and look sweet. $195 is tireracks cost, and our local discount tire could get the UHP for the same price. I'll visit this thread later, I might have a few solutions.
http://www.tirerack.com/tires/tires...9GRUHPXL&vehicleSearch=false&fromCompare1=yes
*also, is this a stock wheel? If not, what are the dimension it?*