K-member bracket & strut brace

i have a 1997 GT Convertible. Underneathe the car where the cross-member is there's a very big square tube black bracket. my question is that even though I think it's a bracket was it a option for my car? did someone put it on? can i take it off?

my other question is that i have the strut bracket under the hood of my car to. that was there also when i bought my vert. could that be an option to? there's nothin like a logo on either of them.

my car came with every option that a gt convertible could come with i'm trying to figure out if these did.