Ford racing will be releasing the Cobra Jet intake manifold very very soon. This allows for more RPM and peak HP from the 5.0L. The intake does require a couple other parts, TB and tuning.
2011-2014 Mustang GT 5.0L Ford Racing Cobra Jet Intake Manifold
So far most customers have been doing the mono blade cobra jet throttle body as well.
Stage 3 Motorsports
Mustang Performance Parts Super Store
MCA Member 45314
2011 GT CS Daytona Pace Car #36
"COURAGE IS BEING SCARED TO DEATH, BUT SADDLIN UP ANYWAY"