Putting this out there again, as it seemed to be confirmed by a previous poster's "arithmetic". I just wrapped my pipes, because I didn't know any better. Also probably wouldn't do it again, but now I have to, because 50ft was definitely not enough to do four headers on a CB350F, only one side. I did two headers and the muffler up to the mount, with a small section left over. This was after re-wrapping much less generously to ensure I had enough to finish one side, I'd say the minimum manageable overlap. After taking the exhaust off, i realized that my headers and muffler were not tacked together. I wrapped the headers, mounted the whole exhaust, and wrapped the final section (two headers and muffler up to mount) on the bike. Otherwise, mounting the headers and muffler post-wrap would have messed it up. I would recommend this if your #$%* isn't tacked or clamped together in position.
FURTHERMORE, despite not expecting any material benefit, after commuting with one side wrapped and one side raw, the unwrapped side is conclusively hotter on my leg and foot. My leg on the wrapped side was definitely happier when stuck in traffic, and that's the TRUTH RUTH.