Ok i just installed my ati procharger and took it for a spin just to fill it with gas. The car starts and runs fine sounds awesome But i am afraid to get on it and see what it has. Right now i am running on ati s stock settings for the fmu should i have the car fine tuned before i can really drive the car cause i am hearing horror stories.If not what is a safe level for all the slides 1 -5? and also the boost dial? And 1 more question is how do i know my fmu computer is working is there a light that comes on or the car wont run if it isn,t on? And i am having the car tuned asap!