Building a new exhaust

I've decided the 340 HP manifolds are here to stay and I want no part of putting on headers. Time to decide what to do behind that. Some of you may remember the old thread but here's what I have now:





Options I'm thinking of are (in order of approximate price)

1) Full TTI manifold-back 2.5" x-pipe system ($576 + mufflers)
2) TTI down-pipes with a Pypes x-pipe system ($480 + mufflers)
3) TTI down-pipes with a Jegs/Summit true dual system ($380 + mufflers)

What's the best option? I've heard that TTI systems look nice but can be a pain to install. The Pypes/Jegs/Summit systems say they are for headers back, would that need customization to fit with the TTI manifold pipes?

Oh, and I'm leaning towards the new DynoMax VT mufflers.

Will post sound clips tomorrow.