The photos below are courtesy of Paul Calewarts of Jacksonville, Florida. They show the principal steps for making and installing firewall insulation using our pattern with "Reflectix" material. The procedure would be the same with any insulation material.
As a point of interest, Paul Calewarts reports that he installed Reflectix in September 2003 and has been using his Fiero as a daily driver ever since. As of October 2012 the Reflectix remains in good condition, performs well, and needs no repairs.
Reflectix is cut to size and ready for pattern placement
Pattern has been cut out and placed on Reflectix ready for transfer of layout
Reflectix is cut out and ready for installation
Reflectix installation is complete and parts re-mounted to firewall