Well looks asside, if the Bear (which is a well respected name in brakes) front brakes are equal to the AP front brakes, then you would be paying an extra $1400-1500 for bigger rears which contribute little in the stock set up (fronts do most of the work) and probably less if the front brakes are 13". Maybe worth while for a factory Touring cup racer to get that little extra edge. But a street/mild track duty car???????
But, it would look a little better
Dan