exhaust

im redoing my whole exhaust and im thinkin of gettin flowmaster mufflers and i was goin to get 2 of them but im not positive which i want to get cause i want it to be loud but sound good and aggressive and i was lookin at maybe the 30 or 40 series can anyone give me input on these if it matters i was goin to run and h or x pipe and then run a pipe right before the wheel well on each side and also its the 3.9 dakota