Flowmaster-40 or 50 Series...?

Hi, I'm thinking about putting in either a 40 series delta flow, or a 50 series delta flow on my 96 taurus (the vulcan engine). I'm also thinking about removing the resonator. Any suggestions?

I mean--flowmaster's 40 delta flow or 50 delta flow series mufflers. Now, that i cleared that up..any suggestions?