Throttle response can be in the tune also. I have also seen the PedalMax by jms that is supposed to eliminate the pedal lag. Might be what you are looking for.
This is my latest beater... 2009 GT, 5spd, JLT CAI, CMDP, UDP, BBK LTH with catted x-pipe 3.73 gear, BMR Suspension and Viking double adjustable shocks in rear, Strange single adjustable front struts.
In search of a 07-09 Shelby GT500 Triple gauge pod like the one pictured. It can be just the pod without gauges (already have the Shelby Carbon series).