My advise is take it to a exhaust shop and have them bend, weld and hang the system correctly. I would also install stainless mufflers, I bought flow masters but there are plenty of other high quality mufflers to choose from. If your car is like mine parked most of the time stainless makes more sense. The reason I say this; if you start a car that has been parked for any period of time you best drive it for 10-20 miles to heat all of the moisture up and out, if not, when you turn the car off all the moisture from condensation will just sit in mainly the mufflers and rust them out. If your car is a daily driver then you can get away with a galvanized system.
JJ