First and foremost: a stack will cause epic problems on your truck. Think about the volume of exhaust "sitting" in the tube causing back pressure on a little gasser that will destroy valve seats/head, but that's just me.
I could sit here and tell you plenty of reasons NOT to put on a stack but most people don't listen anyway. It'll cause epic problems (other than a useless bed).
Second: if there is an oxygen sensor AFTER the cat (which there most likely is) then you can NOT remove the cat without setting off a check engine light. IF THERE IS NO oxygen sensor after either car (which I HIGHLY doubt), then you can remove them with no ill- effects to the motor itself. If you are in an emissions compliant county/city/state it will FAIL emissions. They probably won't even test it. O that bring me to part 3
Third: if you have a stack emissions can't put there filter cone on it to measure your crap and can't test it and will turn you away with a big fail before you even start.
Fourth: if you want it LOUD and Deep then put a V8 in it. You won't get both with that motor. You'll get LOUD if you chop it off and leave it as open headers, but it'll sound like SHIT and will cackle every time you let off the throttle (again, GREAAAAAT for the valves, sarcasm). It'll have a kind of high ricey feel to it and just be louder than a helicopter.
Fifth: If you want a good, functional, hi-performance exhaust. Get a hi-flow cat (I recommend just one to replace your 2) and a cherry bomb if you so desire. (I run a Thrush, same shit). If you want a good rumbly sounds get a super 44, or a super 40. It sounds very good as for as tone and little resonance at high speed. It is significantly louder than stock, but not enough to set off car alarms/piss off traffic.
Sixth: USE THE SEARCH BUTTON. I havent even been here that long and I can tell you this is talked about ten times a friggin day.
Seventh: HI AND WELCOME TO THE FORUM
Not trying to be an ass, but seriously this is on 3 other threads on this same page in the exhaust section.