What would one single dump cut off right before the muffler sound like? Loud? deep rumble?

 

just a little louder than it would sound like with a tip, estimated about 20 or 30$ louder. It might have a better deeper tone with a tip though, but will be a little louder dumped.

 

http://youtube.com/watch?v=4GoEplWAuWI

http://youtube.com/watch?v=iZJGEtC0Rvo
this second one is the guys homemade fab.

there's some pretty nice electrics out there, but im thinkin' that i might go with a manual just cuz i take my truck offroad and don't want to trash any of the electrics. nice deep sound, heard some people say that their too loud, but Fords have a bit softer sound to them, still nice and mean though