Dumps vs. Catbacks

[Slowleen]

I was wondering how much louder a set of dumps is then a catback of the same muffler. Reason I ask is I have the magnaflows sitting here at the house which dont well "right in" as I hoped. I was considering just making dumps out of them since they aren't very loud mufflers and also b/c most panhard bars dont work with factory routed pipes anyways.

Just curious if its something obnoxious or if its tolerable. My muffler and x pipe combo for those who remember, are the same as my '01 saleen which wasnt really all that loud until WOT. Also if anyone can fill me in on the pros/cons of dumps vs. catback.