I suspect I am going to have major problems surrounding my exhaust and passing the drive by test at Bedofrd.

Looking at it a standard back box will not mate up to the Miltek.

The miltek seems to have a shorter centre section with a longer pipe on the back box.

I need to know if the scoobysport system (downpipe back) will fit on as I think the miltek is a 3" system.

If it does fit on then a standard one should (just in case the scoobysport is too loud)

 

so no one knows then?

 

Each part of Scoobysport's exhaust replaces another factory part so you can easily change whatever you like, backbox, centre etc if their noise is more than what you expect.
JIM