If you're like me, and always looking for the easiest method, then my advice:
Get the front of the car up on jack stands (fairly high) to allow plenty of room to move around underneath and get good leverage for removing/loosening the crossover bolts. Loosen passenger side, remove driver's side so the crossover pipe can be moved around some.
Remove the tire/wheel!!!
I use a really long extension to reach some of the bolts through the fender well (why it's easier without the tire to get in the way).
Remove the two alternator brakets, and dipstick tube.
The rear bolts will likely need a box end wrench, and I get the rear lower one from under the car.
Keep track of where the bolts came from
Odly enough, the nuts that hold the dipstick tube, and the alternator brackets to the studs are 13mm, but the studs themselves are 9/16. Go figure.
Hint: Gear Wrenches (or Sears equivalent) are the best investment I've made in years!