JUST got the NEW exhaust

true duals
magnaflow bullets with turn downs

should I expect any horse power gains with this?

Length that short, straight thru mufflers and no X or H pipe... expect a loss of low end torque.

Unless you are racing the stang at the track you aren't going to notice any drop in torque.

The compensation with increased throttle response and ****in' sound will still put a smile on your face!

Any videos yet??

here is the best sound clip i have of it so far, my camera isn't all that great at picking up the sound, a lot of distortion just bare with it.

YouTube - Mustang MagnaFlow exhaust - 4.0L v6 2009

No gains. And you shouldn't notice the power loss. It's marginal at most. As long as it sounds good to you that's all that matters. Sounds pretty cool to me.

Sounds good to me!

Sounds good!! Like the downpipes!