Nice setup, looking forward to the dyno info. You may want to consider ditching the cans and go with Supertrapp mufflers. The sound is different, but in an ominous "What IS that?" kinda way, plus as they have a disc system you can tune it yourself easily by changing the number and type of discs. Instant exhaust tuning while at the dyno or playing with boost. And they have a variety of styles too.

I'd probably go that way myself if I weren't converting to turbo-diesel.