Using multiple maps?

[norcalkev]

Hey all... I'm getting a supra soon and i just have a question concerning the ecu as I am trying to plan ahead. I had an sti but I didn't get far enough into it before I gave it up to get familiar with this stuff. I remember talking to people about standalone ecu's, piggyback chips, and plug n play programmers. Basically when I get a supra I want to be able to use multiple maps so that I can have a range of hp that I can use either towards fuel economy or with the flip of a switch I can take down vettes ect. Of course I plan on doing this after I've modded the engine, how what I go about doing this and what piece of electronic equipment would I need. Thx