Late model restoration has the JLT with tuner combo for 599 (649 if you want carbon fiber) it comes with a BBR tune.
A guy I know in another forum put down 411 at the wheels with just that.
And yes with an auto your shift points change but if you really want a quick launch you should pair thus with some radials
2008 4.0 SOLD (I will miss my first stang forever)
2011 5.0 black on black with 3.73 manual
and I still get over 26 mpg