That's true, forgot about the DF. Guess I will find out this weekend, my throaty duals are coming off. If i'm wrong on this I 'll let you know the results. I've been wrong before,most certainly.
To OP, do your homework and get what makes you happy.

 

Thanks for all the input so far guys. I am going do to lots more research before jumping into something. I'm thinking about sticking with a single in dual out muffler but increasing the pipe size slightly and removing the cat (no pollution regs where I'm living )

 

Your truck is a 97 correct? In that case you need to address the y-pipe if you want to see actual performance gains. And since you have no emissions I would recommend the jegs off road y-pipe. Or have a local exhaust shop fab you one.

Then a cat back system, single in dual out will give you the sound. Don't go any bigger than 3 ins but I wouldn't recommend that big anyway.

That well give you a good performance and sound gain

 

Yes it's a 1997. Okay so Jegs Y pipe, I'm thinking 2.5" pipe single in dual out. Not sure which muffler to go for yet. I've seen a few guys with a super44 flo-master. I have 40's on my '79 5.0 and it isn't quite the sound I was looking for

 

what's the sound your looking for?

 

i would like to get something that has a good throat while i'm on the skinny pedal but doesn't drone the wife out while cruising lol

 

The muffler I want to get is a Hooker Maxflow. By seeing dyno comparisons with other mufflers and db comparisons it seems to be that it is a top choice performance wise and the sound isn't to loud at cruising rpm then it gets really loud when you get on it. There aren't many exhaust vids of it though.

The results in HP order (5.0 mustang):
1.Flowtech Warlock (open) 374.2 hp/ 333.1 tq
2.Bassani Real Street 373.7 hp/ 333.8 tq
3.Hooker Maxflow 373.5 hp/ 333 tq
4.Borla XS 373.3 hp/ 332.6 tq
5.Magnaflow 372.8 / 332.5 tq
6.MAC 372.3 hp / 331.5 tq
7.Flowtech Afterburner 372.3 hp/ 330.1 tq
8.Hooker Aerochamber 372.1 hp/ 330.4 tq
9.Bassani 372 hp/ 333.5 tq
10.Spintech 371.6 hp/ 332.2 tq
11.Edelbrock Performer RPM 370.9 hp / 331.3 tq
12.Borla XR1 370 hp/ 334 tq
13.Flowtech Terminator 369.5 hp / 331.3 tq
14.Dynomax Ultra Flo 369.4 / 333.2 tq
15.Flowmaster 369.4 hp / 331.8 tq
16.Flowtech Warlock 366.3 hp / 325.3 tq
17.No muffs 365.2 hp / 330.1 tq

Sound Off in Quietest to Loudest (Decibels):

1.Borla XS, 80db at idle, 90db at 2,000 rpm, 110db at WOT.
2.Hooker Maxflow, 80db at idle, 90db at 2,000 rpm, 120db at WOT.
3.Magnaflow, 82db at idle, 91 at 2,000 rpm, 114db at WOT.
4.Flowmaster, 82db at idle, 93 at 2,000 rpm, 115db at WOT.
5.Flowtech Warlock, 83db at idle, 92 at 2,000 rpm, 112db at WOT.
6.Dynomax UltraFlo, 83db at idle, 94 at 2,000 rpm, 113db at WOT.
7.Borla XR1, 83db at idle, 96db at 2,000 rpm, 118db at WOT.
8.Bassani Street, 83db at idle, 96db at 2,000 rpm, 120db at WOT.
9.Edelbrock RPM, 84db at idle, 93db at 2,000 rpm, 118db at WOT.
10.Bassani Real Street, 84db at idle, 96db at 2,000 rpm, MAX. (120+db).
11.Flowtech Afterburner, 86db at idle, 94db at 2,000 rpm, 115db at WOT.
12.Flowtech Terminator, 86db at idle, 94db at 2,000 rpm, 119db at WOT.
13.Hooker Aerochamber, 87db at idle, 94db at 2,000 rpm, 114db at WOT.
14.SpinTech, 87db at idle, 97db at 2,000 rpm, 116db at WOT.
15.MAC, 87db at idle, 98db at 2,000 rpm, 119db at WOT.
16.No Muffler, 91db at idle, 103db at 2,000 rpm, MAX. (120+db).

 

Stay away from flowmaster then because they drone like none other. My cherry bomb vortex, while not the loudest muffler in the world, has a nice tone, flows extremely well and doesn't drone at all. You might look into magnaflows they sound pretty good too.

 

thanks for the chart, but i need to get a new system for my truck. i can't spend money on the 5.0 right now, it already has new BBK shorties and H pipe and the flowie 40's on it

is there a chart like that for the dodge 5.9?

 

okay, i'll start looking at Magnaflow's. thanks