Quote:
Originally Posted by frdfver
Also whether they were coated on the inside also, will help contain the heat.
Paul...
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Yes, they are coated inside and out. I agree the material thickness probably makes a difference. I have undercar exhaust and after shutting off the motor I shot the collector/head pipe and then the muffler. The baffled mufflers were ceramic coated also but may not be as effectively coated inside. The muffler was nearly twice as hot - great little heat sink.
So no one thinks the coating color matters on radiated heat?