Just wondering if a fuel pump(ie. Nippondenso) would have any positive affect on car with stock injectors?

Here's a list of my mods:

Intake
FMIC
DP
MP
CB
14psi
M2 ECU

So, should my next mods be towards fuel since I'll be going single soon? Or should I look towards ignition?

 

You should do fuel pump when you do IC upgrade .... it won't add anything but it will help ensure you don't run lean by not having enough fuel pressure. Do injectors and other fuel then ignition then turbo.

 

Don't forget that even though you have stock injectors, the M2 ECU has raised their duty cycle calling out for more fuel.

So yes, a fuel pump COULD help.

 

The stock fuel pump can flow enough to keep up with the stock injectors up till they are maxed out. So the fuel pump will not change any thing. However as soon as you change the injector you need to upgrade the pump. So you might as well do it now because you'll have to do it shortly.
Plus your fuel pump is as least 7 years old so think of it as cheap insurance.

 

Also upgrade the FUEL PRESSURE REGULATOR to an adjustable raising rate style. Fuel flow is dependant on not only Injector Size and Duty cycle but also PRESSURE differential through the Injector, (FP-MAP) the higher the boost (MAP) the greater the FP required to maintain rated flow for the injectors. The BIGGEST pump won't help if the FPR won't allow higher pressure