Already Have Full Exhaust, Headers, Cat-Back and CAI. Not Sure what Fuel System upgrades I should look at First. Not trying to spend a bunch of money, Just wondering what should give me the most gains, for my dollar..
I was looking at Bigger Injectors, Fuel Rail, Pres. Reg, Pump what have you,
Is There ANY fuel upgrades i could do w/o messing with the ECU???

 

There are plenty of people that run turbo around 7psi with the stock injectors fuel rail and pump. Thats using alot more fuel than the mods you have listed. I have bigger injectors and bigger pump but I am still running the stock fuel rail with 15 psi of boost and 2.5x the stock hp with no fuel issues. The most gains for your dollar would be to not look at fuel upgrades but like lightweight underdrive pulley, lightweight flywheel, cam etc.

 

Thanks. I think I will hold off on the injectors for now in that case. So fuel system can handle it, I am assuming my stock ecu accounts for the extra air intake and headers considering I never threw a CEL. My thought process was more air, more fuel, more power. I wasn't plannig on going turbo for a long time if at all. In that case keeping in mind only NA upgrades, The Fuel Pressure upgrades would benefit more, only after some further upgrades??

 

Yes the more air/fuel you can stuff into the engine the more power you can get. You need to create the need for more fuel by shoving in more air. Right now the stock fuel system is well within safe working parameters. Maybe after some serious n/a mods like port and polished head, hotter cam profile and higher compression pistons will you need to upgrade the fuel system and get a tune to properly use the mods.

 

I Really don't see a need to put in new Injectors, The Stock ones are Good as is. The only reason I'd put new Injectors in is if I get a Turbo. And to my knowledge I don't know any way to do any fuel upgrades without messing with the ECU. But 03lances is right "the more air/fuel you can stuff into the engine the more power you can get." That's why I started small with a Short Ram Intake.