I have the Jones Max Flow on one of my cars and the Magnaflows on another.
Both exhaust systems are almost identical otherwise. Both have block hugger headers, 2.5" with x-pipes. But the Magnaflows are on a 330" motor and the Jones on a 505" motor.

The Jones mufflers sound a little louder and less mellow (more raspy) than the Magnaflows. I don't know how much of that is due to the motor or the mufflers.

I like the sound of the Magnaflows much more, but that's just my opinion.

The Jones mufflers are a steal for the quality, though.