Hey guys, I was just wondering if i could use this for my v6 stang (even tho it say its 4 a 4.6) also what would i need to run it. I have new fuel injectors/pump. It says it's "Complete with everything" FMU computer Mass Air Air Filter Oil Included Anything else needed? What about a downpipe i hear about all the time? and what do you think the mass air is? Thanks - matt