When it came time to bend my exhaust, I thought I was out of luck. Due to a move a couple years ago, my tool inventory is rather small. Though I do own a propane torch, I had no vise or anything else to hold my exhaust as I tried to turn it. Finally, I came up with the idea to drill a couple of holes in a 2x4. I the bolted my exhaust pipe to the 2x4 (using the holes I drilled). Using the propane torch I heated up the pipe (this took a long time). Then, by standing on the 2x4 I was able to eventually get a pretty good bend on it. At first my only movement was from the bolts bending and the soft wood giving away, but eventually that movement stopped and my pipe it self began to move (bend). Fortunately I got it right the first time. I would have hated to have gone through it all a second time.
Though you may be able to get by without certain tools, I don't think you'll be able to get by with out an intense heating source. I would guess that you will definitely have to either buy or borrow a propane torch.
Jason
In my situation, I can't imagine that drilling the mounting holes would have worked. I had a lot of clearance I needed to attain. I think think that enlarging my mounting holes the much would have made for some future aggravation. But if someone needs just a tiny bit of clearance, that may be a reasonably easy solution.