Wall Colmonoy has received FAA-PMA certification on its new Nicrocraft Cirrus SR20 muffler and heat exchanger.

The Nicrocraft part for the muffler is eligible for installation on Cirrus SR20 S/N 1423 and on. The Nicrocraft part for the heat exchanger is eligible for installation on Cirrus SR20 S/N 1886 and on.
Both the muffler and heat exchanger are made of heat resistant 321 stainless steel. The baffles are made of Inconel alloy to provide “maximum reliability, corrosion resistance, and service life,” company officials said.
What will the heat exchanger do ??