I have never had my Z on a dyno or any car for that matter and I know little of how it is done. People talk about having the car "tuned" and I wanted to know if that is a requirment to have the car put on the dyno. I have the JWT ECU that was set for the injectors and NOS so I am concerned about making changes to the program. is there anything I need to do before taking it to the dyno shop?
Any Thoughts/suggestion or general ideas of help is appreciated.