Heat wrap for muffler exhaust

Do you have it Ceramic coated?

Lucky,

There are lots of pro's and con's regarding heat wrap.  Pro's: relatively inexpensive, do-it-yourself, lasts a few years, is effective regarding heat rentention.  Con's: looks unsightly, soaks up any moisture and oil it comes in contact with.

Heat wrap is usually limited to the engine compartment, i.e., headers in n/a engine, up/down pipe and turbo in turbo engines, not under the car as in exhaust, where it will soak up any road moisture from rain, puddles, etc.  There are lots of ceramic coating companies.  My choice is Swain tech in NY: most effective at holding heat inside the pipes.  Some OCD folks with use ceramic coating and heat wrap to help lower under hood temps.

With an a/c engine in a replica and good engine tins, exhaust coating is mostly for looks, but it can help keep exhaust heat from migrating, and keep it in the pipes where it belongs.

Unless your muffler is stainless steel you could accelerate its demise with heat wrap if it EVER sees salt water / ocean up close and personal....

I'd vote 'no' for heat wrap.  It causes more problems than it's worth.

I've done exhaust work for over 20 years, and I've seen my share of rusted up exhaust come from wrapping it. Once the moisture is there it doesn't leave. I'd ceramic coat it, and the shields.

Remove them and take them to somebody who does ceramic coating.

I would not wrap the exhaust on a car that is exposed to either occasional rain or constant humidity. That condensation will scab up the surface of your pipes at best, and at worst will allow unseen rust to eat holes in your header.

Ceramic-coated pipes may not have that problem, but I can tell you that my header, a complete custom fabrication job with no off-the-shelf anything, was completely ruined in less than six months because of that fiberglass tape.

Completely wrecked, as in one of the pipes broke off, and the remainder were scaled so badly that the wall thickness was less than 1/32" in spots. We made another one.