same make & model of what? a cage? cages dont have a make & model (correct me if i am wrong Leon)
But as stated above, a cage is homologated to a particular car, when this is done it is given an identification number.
If you take that cage out of the car it was put in & place it in another the identification number is no longer valid & the cage must be re-homologated with in the new car & given new homologation details.
EDIT .....
Or are you asking if your car will have to be certified for having a cage in it?
If thats your question then yes it will be & it will have to adhere to the rules that apply for that particular application.