I dropped mine off at the muffler guy and said I wanted 2.5" pipes and electric cutouts. He did the rest. The cutouts sit a little (lot) lower than I was hoping for, but they're fun and the exhaust looks good when I'm under it.
If you live/drive on a dirt road, be aware that the exhaust going up and over the axle then dumping downward will kick up a lot more dust than a straight exit parallel to the ground.