Alright I heard my friends truck today. 99 Screw and it had no muffler with true duals. all he had was cats. but that thing sounded awesome. It wasnt as intense as i thought it would be. Would it be worth it to go with that. Im really into the pop and the sound of straights. And how much back pressure would i lose?

 

I guess if you like that sound...Do what makes you happy. I would go true duals with flowmaster original 40 series with magnaflow high flows

 

99 screw? There are no Supercrew F150s 2000 & older, 2001 & newer, I guess you meant scab as in Supercab. But anyways yeah with the stock 4 cat setup running no muffler isn't too bad, it will pop when you rev up heavilly too.