just installed a quadzilla m3, the directions said the switch was mileage. stock, mileage, but with no markings on the switch. is it colored coded with the wires or what. also am i suppose to put the module on computer before i install, or is it ready out of the box. did not notice much differince in performance.

 

I could be wrong but that box is not going to give you a real performance boost. If I'm correct it basically disengages if you stick your foot in it. It's a mileage box, not a performance box.