Exhaust Q's?

[trelms]

So I have supersprint headers and then stock e36 center section with a borla box.

just wondering if I could use a E30 supersrpint center section with no cats (i dont have emission where I live)

anyone know the diameter or these? I found a used set so i was thinking of this as an option.
Thanks

[e30_325es]

You could always measure what you have. I'd imagine they are about 2".