I currently have BBK shorty headers on my 1998 mustang gt. My passenger side has a flange connection and my driver side does not, it has a connection like the one shown in the picture below. I just bought a bbk catted x-pipe. both sides of the x-pipe have the flange connection. What can I do or buy inorder to be able to hook up the catted x-pipe to my bbk shorty headers.