demon 3" exhaust routing?

I was actually looking at the recess in the floor out back. I was thinking of just ordering a pair of stock 2 1/2" tailpipe sections and locating them on the stock hangers that are there and then working backwards to my X pipe through a pair of 3" mufflers?

That would probably work! but not sure you want the stock type tailpipes considering that they are probably pressbent, i would want them to be mandrelbent