The start of the major update for this Seneca was the instrument panel. We updated all the avionics and engine monitoring. Dual CGR-30P’s, CGR-30C, G500, Dual GTN’s, GTX-330ES, GDL-88, GTS-800 Active Traffic, GDL-69 SXM, PMA450, MD-402 SAM, MD-93 Clock with USB, and a S-TEC 55X Autopilot with Flight Director, moving the old left panel instruments to the right side