anyone using a thrush mufflers?

need some advice on mufflers.

I ran the old thrush turbo 400 mufflers (oval, reversible, 14" in length) for about 20 years on my truck. they sounded perfect, deep tone when idling and not loud under full throttle , no blatting sound or resonance- you just heard the engine at wot and the secondaries not muffler blat' - cant find em any more
anyway I've bought magnaflows and took them off because they were too loud and now I have dynamax super turbos and I,m not happy with them - not bad but loud at wot

the question is that thrush makes what they call just a thrush turbo muffler...are they the same as the old turbo 400's or are they the same as the dynomax's (I think thrush/dynomax are owned by the same co.)

has anyone used the thrush's lately or could anyone shed a little light on this before I waste more money and time