[NikFu S.]

All the oldbies here know of this FAQ and most of them do not like the information it contains.

Exhausts have been discussed and chopped and beaten to death around here. Pretty much everything has been done. If you want to go dual, go right ahead, just make sure you use a small diameter pipe of say... 2.25 inches at the largest.
I vaguely recall some resonation issues with this setup. An X pipe would be pointless. You might as well leave it stock.
Magnaflow and Stebro systems are common. I give them a "meh" at best. They sound ricey to me, but most people approve of the noise.

The average power user such as myself prefers the muffler delete setup, leaving the front stock and adding a cherry bomb or resonator or two. Some people go for higher flow cats. I don't see the point.

It sounds great, but I do at times get tired of the constant bvvv noise in the back of my head.

Your setup sounds intriguing, most of us will require pics.