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[Chuck43]

I was wondering if I could spray high temp Resistet foam where you would normally wrapped a non perforated baffle to insulate the tinny sound thus not having to remove the baffle my pipes are 2-1 D&d fat cats

[Chains]

I think it would smolder and melt.  JMHO

[MrSurly]

There isn't a spray foam product (Great Stuff FireBlock,etc) that could withstand the temps in your mufflers. You're dealing with probably 5~600 degrees.
Fiberglas, (stainless)steel wool, not many other options, and even those materials can be counted on to break down.

[toddwebber]

If it doesn't work your looking at a mess. Which baffles do you have in your D&Ds? They make a few different ones. I never considered mine to be tinny sounding. Loud....yes

[Chuck43]

I have the loudest unwrapped prefrated baffle, don't know how they sund yet not putting them on till march but heard that they are tinny sounding

[toddwebber]

I think a deep sound if anything. At least mine don't sound tinny

[Chuck43]

Thanks for letting me know that they don't sound tinny because I love the looks and great reviews putting them on in March just before taking it to doc in Florida for a dyno tune

[MrSurly]

Stop by WalMart and pick up some foam ear plugs...

[toddwebber]

Thanks for letting me know that they don't sound tinny because I love the looks and great reviews putting them on in March just before taking it to doc in Florida for a dyno tune

You'll love it when he's done with it