i just got the sct XCAL II last week which does pretty much the same thing except the live wire tells u more parameters and like 0-60, 1/4 mile, etc... as far as performance goes you will feel a difference and since u have an automatic like mine i can tell u that the shifting is awesome. i got mine custom tuned from Justin at VMPtuning.com he was really good. if i didnt have a escort gt-1 i would have bought the live wire.
__________________ 2004 Mustang 3.9L V6 with K&N intake, Dual Flowmaster Super 40s, Motoblue 42% Pulley, GT rear sway bar, drilled and slotted rotors, SCT tuner, 4.10s and tlock, Black FR500's 17 by 10.5 and 17 by 9. | 
thoughts on new sct livewire 
