part above panhard rod

while taking my catback off i had to take off the piece similar to the panhard rod, but just above and behind it. what is this parts name and purpose? also ok to drive/ race the car like this?
wondering if i should put it back on b4 i take the car out of storage?
thanks in advance, brian

The part you are talking about is the panhard rod mount support brace. You need to have it on the car before driving it.