I'm curious. Sandblasting will not adequately prep a chrome surface for paint as opposed to sanding?
[/quote]
Just the opposite from my experience. Sand blasting chrome is way better then trying to sand it. Chrome is really a hard surface and it takes forever to sand, but blasting gets it ready in no time. I've painted lots of chrome parts and the paint stuck very well after blasting it to the point it has absolutely no shine to it what-so-ever...without a ton of sand scratches, too, I might add.
As far as this Suzuki's pipes, hell, I repaired a couple of rust holes in the bottom of the collector of my 400F last year with JB weld. The header pipes were so supremely beautiful, I hated the thought of throwing it away and tried the quick fix, and it's actually held up great. I would try it on these mufflers, too. It sands easily, and holds paint really well. Nothing but the cost of a tube of JB Weld to find out.