First here is the link to the rtek site with most of the info you will need.
http://www.pocketlogger.com/index.php?pid=rtek7
Rtek is a plug and play type of engine managment and they have versions 1.5, 1.7 and 2.0. All just depends on what your plans are.
You send in your stock ECU and they rechip it and program it to control for larger sec. injectors, timing etc...
If you go with the 2.0 it actually allows you to adjust multiple setting with the use of a PDA.
If you go witht he 1.7 and 2.0 you will have to have 720's in the secondaries.
Mike