what magnaflow muffler is best?

[mastere954]

so im running a full str8 pipe exhaustwith a megan racing high flow cat. the apexi muffler i have on it sounds bad. what magnaflow muffler would be best for my set up (warpspeed y-pipe, stillen b-pipe, 2.5"-2.25") or what other muffler would be good?????

[maxhopper]

You already have a thread regarding this topic. Please do not make duplicate threads.