Hope they sound good are you running a catted Midpipe or O/R pipe? I had them with my Catted high flow midpipe and just didn't like them as much as my bassani's i have now.
You're gonna love the stingers. The day I got the stingers on mine with the off road X and the reworked side pipes I couldn't get enough of it. I must have put 200+ miles on it that day just cruising around.
Is that Magnaflow Catted X the one with 4 cats? If so thats the set-up I had at first. Then I met one of my Mustang buddies that happens to be a state inspector and doesn't care about emission stuff so I switched to a Bassani Off-Road X and I love it. It is soo much more louder then with cats. I get compliments everywhere I go about how good it sounds. 9 out 10 Mustang around here have Flowmasters, so its a nice change from the rest.
on the stingers; what a glorious sound! Louder and much more barking and aggresive outside. I can keep them pretty civilized if I don't put my foot down to much. And they're actually quieter inside the car cruising.. quieter then the 'deltaflow supposed to be less drone chokemasters', imagine that.