Yep, I agree. I'm doing headers back. Custom stainless to 3" single pipe, single cat, single 3" strait through muffler tucked under the car before the Y pipe (still have to get under the car to work out the details) and strait pipes out the back. I'm a fan of the fox and the dual strait pipe look.
As for the sound, the entire set up and position of the muffler(s) does play a part in the over all sound. I'm going to have a bit more of that deep hollow 5.0 sound due to moving the muffler back under the car - hopefully it won't be too hollow. I'm not lowering more than an inch, so clearance won't be a problem and the mufflers I'm looking at are only 4-4.5 inches thick. I'm going to try about 4 or 5 different brands and go with the one that sounds the best... It's nice to have a "product testing" budget.