Flowmaster Delta flow vs regular

I have the regular flowmaster 50 series and they resonate fairly loud. Anyone on this board used the delta flow flowmasters? They are supposed to be quieter inside the car. I still want to run flowmasters because they are the best sounding muffler IMHO, I don't care if everyone else has them or if their are better performance mufflers.

Noisefree America hates me.

Tom