Free Flowing Quiet Mufflers??

as for a non dual mode type muffler the dynomax super hemi turbos are the quietest and flow great but they dont fit under mustangs too well. I still have a set of ford racing dual modes in my garage or else I would be trying the dynomax vt's.

Glad to hear this, I think I'm going to give the VT's a try, finally found some flow ratings on their site, they should put them with the product too:
DynoMax VT? Muffler | DynoMax Performance Exhaust: Press Releases

The new DynoMax muffler’s proven performance advantage can be seen in recent flow-bench testing of the DynoMax VT (No. 17956), MagnaFlow (No. 11226), and Flowmaster (No. 42541) products. The DynoMax VT muffler delivered 841 cubic-feet-perminute flow, compared to 588 CFM for the MagnaFlow and 373 CFM for the Flowmaster.1
1 Test conducted on 14-in. body with 2 1/2-in. offset/center configuration.

That's pretty impressive for CFM flow, even if they only flowed 600cfm I'd be happy with them I'd bet. Now I just gotta get my engine ready to start so I can have 90 days of a running car to test them and make sure I like them.
Jon