i dynoed the car 800 miles Steeda cai and the lethal X-pipe and tune anyone near jax fl that needs a tune on a 11 he can do it:beer:. [nomedia="http://www.youtube.com/watch?v=DoA_VelgMe4"]YouTube- 2011 gt 5.0l 800 miles Steeda cai and the lethal off road X-pipe.[/nomedia]