I thinking of yanking my POS flowmaster off and running straight pipe after the cats. Anyone running this setup?

 

i have ran that setup,sounds pretty good,a little power loss with no muffler but the sound makes up for it.and if you have a 4.6 it won't be very loud my friend has one with straights from the cats back and its quiter than my 5.4 when it had a muffler and cats still on

 

I had a clamp come undone and it was pretty loud inside the cab, but that's because the driver side came undone right after the stock cats. I plan on removing my mufflers this weekend and swapping in 2 pieces of pipe... hopefully it isn't too loud because I LOVED the way it sounded.