Can I drive without this?

Just bought a 1990 acura integra gs and had a b series dc header installed. I had to remove this bracket to get it in and now the bracket doesn’t have any room to go back in. Is my frame safe without it.

the one in the green circle is what won’t go back in: will post pic once wdtr is back up. I think someone once refered to it as a cross member.

search on notching the crossmember. but i would say don’t drive it like that cause it’s also part of the suspension

tip. search for G2guru imagestation acount and there is some picture of his crossmember notched