Does anyone have this product or had experience with this product? I emailed SZ and they said it works with your stock ecu, you don't need a stand alone ecu. I was wondering what kind of gains one could expect. I realize it probably depends on how the car is equipped... is it worth the money? Are you satisfied with yours? https://specialtyz.com/shop/300zx/sz...-selector.html. Thanks!

 

Do you even know what they refer to as a map?

 

A program that controls the aspects of engine management IE air fuel ratio and timing... this is my personal idea of what a map is, I could be wrong but I could google it if you like... will there be a test?