Here are some crappy pictures I took with my phone, but it shows some of the stuff you can't see from the outside.
The catch can:
The fuel surge tank, that fits under my full size spare:
And, if you hadn't noticed, it has the stock muffler on it. Why? Well, because I'm a genius and it's a discreet exhaust dump/turn down. The entire inside of the stock muffler is gutted. The 3" pipe comes in through the back and exits through the bottom of it. I thought it was pretty clever.