New LS1 Owners - Newbie Tech - looking for a thread

i tried the search, but i cant remember the name of the thread or the thread starter. it was a thread about a free ac mod, basically with this mod u can fully move ur driver side ac vent up and down. ne one know what im talking about? thanks.
osvaldo.

dont know where the thread is, but all you have to do it pull the vent out and there are little tabs on each end that you grind off then just put it back in

http://www.ls1tech.com/forums/showthread.php?t=517421&highlight=vent+mod