help please
 

ok im rebuilding my 13b s5 and i left the rear back plate at my work (im a machanic). there is nno way i can get it until mon. i have a rear back plate of a 13b s4 will it mount up. in need any help i can get but please if you don't no dont tell me i can. i need all the help i can get. please i need this car by mon.

how could no one now an answer. can some one help