You don't really need stainless for the shield. The really cool way is

what

is very popular for Harley motor cycles and that is a slightly larger
tube surrounding the existing exhaust pipe. It must first be bent to the

same

shape. You split it apart with a friction disk like you would cut a hot

dog roll.

IMHO this is a bit over kill. On the other hand Ed Klepeis can make

anything

for you.

This is the process that has been used in nitro funny cars for years.
Keeps radiated heat down, but in this case largely to prevent fire
in case of an oil or fuel leak.
Archie

 
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