Getting ready to do mods ????

[epowers777]

So you are saying I can get these injectors (stage 1) for my truck and they will work but I need to get new tunes from php? Doesnt each tune cost money cause I just bought the chip?

So how much would I have to spend in tuning?
If I am called in for smog in California will I pass?
Is the Harness the same?
Better mpg. Like how much?

Sorry for all the questions but I want to be a 100% positive before I spend that money.