I've read somewhere on here a few weeks back someone answering another poster's question on the basis of whether or not that person had sport brakes. I think the person had a limited or XLT. This prompted me to ask, would getting a certain option (such as factory tow package), result in the factory upgrading a non-Sport's brakes to Sport's brakes on a non-Sport? Such as in the case of the factory adding an engine oil cooler whenever someone gets the tow package. I hope this question makes sense. Also, can anyone provide step-by-step on upgrading standard brakes to Sport brakes?