[Marcus]

Edward: I have three mustangs, ranging from a stock 289 to a punched out Hi-Po 289 to a Hi-Po 302, all with dual exhaust. I run Flomaster Stage II on all of them; I like the mellow tone with a little rumble - stand on them, and there is a definite bark. I also have a F-150 with a highly massaged 5.4, with a Hooker Exhaust Extraction System (they make one for cars, also) ..... A nice deep rumble with a super growl at WOT. Hope this helps!