I have a dual tip muffler for an S13 that is attached to piping that goes all the way to the cat. No leaks or anything. The muffler looks pretty good and isn’t that loud at all. At idle, i don’t think u can even hear it. It’s considered quiet to most people who have aftermarket mufflers. Here is a pic of the muffler. I can get a whole picture of the muffler and piping if you want. Quite a few people have heard it and they think it sounds pretty good, not too loud at all.
