Ok, makes sense Jim. I think the product is called Thermo-Tec adhesive heat shield. It is sold in sheets of 12" by 24" perhaps even larger. I see it on Summit, Jegs, etc. You may want to contact Pegasus racing to see if they have something else that they could suggest.
Thermo Tec makes quite a few products for heat protection, here is their link...
https://www.thermotec.com/products/h...and-protection