As they said its basically preference to your liking...
I personally have Mac unequal shorty headers flowing to an Off Road H to 2 Chamber Flowmasters and love my exhaust ..... Its just beautiful sounding at 2 grand or above.
Now on mod motors the X pipe sounds completely badass and maybe most of it is because I love the way a mod motor sounds in the first place, totoally diffrent but still Mustang in every way.
I have a friend with an X pipe and he loves it and I also like the sound of it, its a 5.0 not a 4.6 so if your gonna go with anything, make it your preference and not someone elses...
And please refer to intakes as intakes and cold air kits as just that, cold air
I am trying to ween the crowd off of saying I got an intake!
"O really , seriously you have an intake? I got one of those on my car stock dude!" It is an intake tube yes, but not the intake, please dont take offense I just cant stand hearing all these younger Honda owners saying they have an intake done and shit lol.
Chris