Stock Exhaust pipe dents

[fgrable@sbcglobal.net]

I've read everything in the archives but just wanted to clarify.

Stock pipes on a '80 GS 550L are double wall, right?

Has anybody had any luck with getting mild dents out of double walled pipes?

Internal water fill and freeze method?
Internal air pressure and external torch heat?
Dry ice?
Slide hammer and weld up the hole?

Just wondering is I should just forget about it.

[Nessism]

Forget about it. Getting out the dents would be difficult.

[old_chopper]

I did just that tonight and yes they are double walled. My #3 pipe had some nice lumps in it close to the flange and I fixed them so you could never tell they were there. Unfortunately I blasted all the chrome off and welded up the dents, then sanded them smooth. The head pipes have been cut off and I built 4 individual drag pipes for my project. They are going out tomorrow to HPC to get ceramic coated.
I don't know how you'd get the dents out otherwise. Sorry!