muffler suggestion?

i will eventually have a 360/904 combo in my 70 dart. not sure yet if i will have manifolds but im aiming for 280hp and 20mpg so who knows. anyway i was looking for a decent turbo muffler suggestion (brand or specific part) and what size pipe i should go with. i dont necesarrily want it super loud, i want it to be heard and have a healthy rumble and just sound muscular

ive heard good of cherry bomb, flowmaster, and magnaflow but i have no idea what would be best for me

I wouldnt reccomend these on a daily driver,but IMO the Flowmasters have the best muscle car sound period.
I run the Original 40 Series Flowmasters. To me,the best bang for the buck.

Are they loud,yes.Do they droan at a certain rpm,yes.Can you hear them coming,yes.Are they annoying as h*ll,yes.Do they set off car alarms,yes.Do my neighbors hate me,yes. Can you wear a skirt with them,No !!!!!

Just some of the reasons I like the org 40's. I built my car to act and sound like a muscle car,not like a daily commuter.