So I've got a 1970 CL350 with its unique 2>2 exhaust, and the left cylinder muffler is detachable while the right isn't. Luckily the left is the only one rusted, and I've found new replacements. But, I'm wanting to keep it from happening again, and I'd really like to keep these mufflers. Anybody know if you can ceramic coat something like this, all the way through? I haven't looked to check, but I hear they're double-walled, so maybe a problem there, but I'm not sure. Now, I could always chop the other exhaust to be removable as well, but can the mufflers be coated? I'll include a picture or two of typical CL exhausts for those who aren't familiar (not mine): I appreciate any advice, thanks.