magnaflow or dynomax? HELP!!

[whoretec5.3]

my current exhaust set up for my 05 1500 sierra extended cab is a single to a Ypipe and duel out the back on a 45 degree angle straight piped, Im looking into going true duel 2.25 with either two race series magnaflow mufflers or two dynomax 16inch bullets! i want to maintain the same volume of my exhaust now or a little louder but more importantly regain some low end torque and power again that i lost with the straightpipes!
anyone running dynomax or magnaflow have any advice?

 

[2003tahoe]

I had magnaflows on 3" pipes didnt like the drone now i have a 18" glasspack with magnaflow high flow cats and tsp long tube headers and its mild to loud at the begining and as it warms up its not very loud but when wot its loud even when warm