New Exhaust
Well Flowmaster mufflers are chambered and baffled which makes them louder than packed and direct flow mufflers. The packing absorbs sound to give a rich deep tone, not a tin can chambered sound 
My truck doesn't annoy me alot but going up a hill it can be annoying. My exhaust drones because its true dualed, and i removed two cats. Flowmasters are louder inside than Magnaflows are so if inside peace is a factor you might not want to go that route.
By the way, Super 44s are the loudest 2 chamber muffler Flowmaster makes, so yes it is louder than the 40 series, and Super 40s.

My truck doesn't annoy me alot but going up a hill it can be annoying. My exhaust drones because its true dualed, and i removed two cats. Flowmasters are louder inside than Magnaflows are so if inside peace is a factor you might not want to go that route.
By the way, Super 44s are the loudest 2 chamber muffler Flowmaster makes, so yes it is louder than the 40 series, and Super 40s.
Last question, which muffler gives better overall performance?
Anything direct flowing/straight through. Avoid chambered mufflers for performance.
Well Flowmaster mufflers are chambered and baffled which makes them louder than packed and direct flow mufflers. The packing absorbs sound to give a rich deep tone, not a tin can chambered sound 
My truck doesn't annoy me alot but going up a hill it can be annoying. My exhaust drones because its true dualed, and i removed two cats. Flowmasters are louder inside than Magnaflows are so if inside peace is a factor you might not want to go that route.
By the way, Super 44s are the loudest 2 chamber muffler Flowmaster makes, so yes it is louder than the 40 series, and Super 40s.

My truck doesn't annoy me alot but going up a hill it can be annoying. My exhaust drones because its true dualed, and i removed two cats. Flowmasters are louder inside than Magnaflows are so if inside peace is a factor you might not want to go that route.
By the way, Super 44s are the loudest 2 chamber muffler Flowmaster makes, so yes it is louder than the 40 series, and Super 40s.
All Flowmasters sound the same, some are just louder than others.
To second my last question, if I cut off the cats will the oxygen sensor take part in that? I don't wanna mess up my computer. Also, will cutting off the cats give me worse gas milage?
1. Shouldn't mess it up but it can
2. I doubt it. Mileage, usually isn't affected much, and if it IS, it won't be very much at all.

With no cats at all, your gas mileage will drop but you will have more power.






