Which flowmaster to use with headers

[nice92explorer]

Ive got 92 explorer with jba headers and some other mods, and i wanted to get your guys's opinions. What i want to to do is do 2.25 piping after the muffler and dump it before the axle. I just dont know which flowmaster to go with. i dont to get really annoyed when my truck hits overdrive, so should i go with the fm 40, or fm 40 delta, or fm 50, or fm 50 delta. what do you guys think. I want it to sound pretty mean.

 

[X~FACTOR]

I know for a fact that 40 series is louder than 50 series. I just can't seem to remember if non-delta is louder than delta?

When you say, you want them MEAN, do you mean DEEP RUMBLE MEAN or WAKE UP THE NEIGHBORS MEAN?

 

[nice92explorer]

deap rumble mean