HELP! Turbo Maxima misfire

[SichThaSlut]

I have a 98 Maxima, VQ30DE
Turbo charged like a mofo.

A few days ago i was driving, everything was fine and then it felt like a misfire started happening.
The next day my car wouldnt start. I figured the coilpacks would be a good place to start. I replaced all 6 of them. Car started up but still feels and sounds like its sputtering/misfiring.
All of my spark plugs are new as well.

Was thinking could be something with fuel injection but i dont know for sure. I never take this car to the shop i always do everything myself.

Any ideas?

[maxhopper]

Check the fuel pressure. Stock fuel pressure with key on, engine not running should be 43psi between the fuel filter and the fuel rail; at idle should be 34psi. Not sure if you're running a larger pump and/or injectors, but that would probably change things.