Initial install of exhaust system per instructions. Used Permatex Zinc anti-seize compound on slip joints. Also, used Nordlocks on exhaust flanges instead of supplied star washer/ washer combo. EGT probes were previously installed. I did the initial fitup of the braces for the exhaust stacks. Also, I sealed and tightened the 90 deg AN fitting on the output of the Red Cube fuel flow unit. Also checked security of all AN fittings on the fuel system and sensor manifold on the firewall.