Anyone attempted to bend an exhaust with heat?

[robbocop33]

So, getting tore into my zxr750 project, downpipes and 4 into 2 section of exhaust were knackered!
So, started looking for stainless downpipes for it, long story short couldn't find good used set and was distracted by someone online saying zx9 B model pipes fit, bought them, fitted them fine, except, pipe up to can heads away from the swingarm a but too much for my liking.
So, i have a propane torch, what's my chances of putting heat on this and it bending slightly? Say maybe having a crowbar and bar down the pipe and pulling it inwards towards the bike while heating it down under the bike?
Will this work? Thanks!

[robbocop33]

I thought about cutting a slit, i have a mig welder but never welded stainless. Might just get someone else to weld it.
The two issues i read i might have when fitting these pipes to this bike i'm not having! But they fail to mention the arse end of the thing.
I even thought if i loosened the 4 into 2 bit twisting the rear end would make the 4 manifold pipes twist within the 4 to 2 join enough to get the rear a bit closer to the swingarm? If you know what i mean?