question about factory exhaust

[ok89]

The other day I was looking under my car trying to pinpoint a loose exhaust bracket. I was looking at the muffler and realized that there were two pipes going in and only one pipe going out. This would make it easy to do a true dual right?

 

[yob_yeknom]

If there's enough room to install a second muffler and another pipe, then it should be really easy. I think there should be enough room no problem.