I have a 3.0 X5. I did a muffler delete a while ago, and the drone is real annoying. I want to make it sound good. I don't want to spend to much either. What can I do to get that real i6 sound? Also would something like this in place of the resonator make it sound good? or some rear mufflers?

40 Series Flow Muffler Two 2 Chamber Dual 2 1 4" in Dual 2 1 4" Out 17" Body | eBay

Thanks for any input,
Valentin