I'm thinking about running a Flowmaster Super 44.. I have the 4.6 v8. I want to keep the stock pipes from the engine and put the new muffler in and run a single turn down. Any advice or experience on how it sounds?

 

here's a clip I found on youtube that seems to be a good clip to judge sound from. if you want my own personal opinion, I'd consider other options for both sound and build quality

 

THis ^
But its your truck and you can do whatever you think sounds better.
Only thing is Flowmasters hinder exhaust flow and in return rob some low end torque. granted its not a lot robbed, so if you really love their sound its worth it to some people.

 

They seem pretty eh if you ask me. I feel there are much better options for exhaust systems.