mustang exhaust?

The thing is, you start changing the piping, ANYTHING, diameter, length, however and whatever crossovers are put in, location of the outlets to the rear, type of mufflers, ALL and ANY of this affects the way the thing sounds.

Even something as simple as adding/ removing rear tips can change the sound.

I can STILL remember the sound of my absolutely factory stock 383 RR. You simply could not have improved on that.