As was stated above ^^^, BUT~~ The Tail Pipe is just an extension of the Exhaust
System, and all though you may not be able to move it (>) rearward, take a look and
see if you can remove 3"s from the Tail Pipe section to allow for the 3"s you need for
installation. That might be an alternative you could look into. I'm just not 100% sure
at this point on EXACTLY HOW your current Tubing is set up with Bends, etc. YOU
will have to evaluate that by looking and making that decision.
ALL SO, DON'T remove the Cat, That could cause you a lot of issues in the future,
especially if you live in a regulated area, for resale, Registration, Inspections, on
Board Computer Diagnostics, as well as a list of others.
Auto Parts Stores DO SELL UNIVERSAL Hangers you might be able to incorporate.