is it worth flowmasters?

I have a 93 f 150 , straight 6, 4.9 liter, 4spd. w/ overdrive... i was wondering would it be worth it to get flow master muffler, ( i'm looking to make it louder), you know the nice loud rumble..... ( it came w/ dual exhaust when i bought it , but no flows.. ,( would flowmaster make it lounder w/ a 6 cylinder?

just a little...

v8's are the only engines that wre made to sound good or have a good rumble. i have never heard a good sounding 4 cylinder, v6 or v10 in my life. is it possible?

v8's are the only engines that wre made to sound good or have a good rumble. i have never heard a good sounding 4 cylinder, v6 or v10 in my life. is it possible?
it's possible if you throw on some glss packs. you would have to get the loudest so that you can hear them. also you might wanna split your exhaust from the manifold.