Pump for sure. Injectors are not necessary but I would go ahead and do them. I like to run my injectors no higher than 85% DC just to be on the safe side

 

ok I have no hard evidence to prove my statement. But my word is my bond and I'm not here to promote anyone. I have the same mods plus more and I was running the stock pump and injectors. My car pulled good and ran ok but it never felt right to me. So I bought a walbro pump and put it in a few days ago. This is the 7th pump I have installed but the first in my car I've installed all my friends pumps. No problems from any of them yet and the install only takes a few minutes. Really just a few minutes!!! The seat pops out and the theres 4 screws and 6 or 8 small bolts swap them out and thats it. Well back to me lol my car runs way better now. It made a huge difference I'm not joking I was suprised by how much of a difference it made. I still have the stock injectors and I'm gonna swap those out when i put in the new turbo. So i would seriously recomend a fuel pump you have nothing to lose, only gain

 

aaaaaaahhhh!!! what I need to know is WHEN I'm approaching that 100%... like what hp or boost (on stock turbo) will create close to 100%?

 

You should direct your question to a Tuner and then paste their reply in this post. I'd love to know when my injectors were being maxed out aswell... (at what psi).

 

I'm not really sure if there is an exact whp number I think it's the amount of air that you start flowing through your car. Yeah I know it says that around a sertant whp you need to replace it but I have never seen any proof. I look at it this way intake, exhaust, cams = pump+tune = good to go
injectors should be fine untill you change the turbo

 

You all want to know when your injectors are maxed out? It's when you boost 19psi to redline with a 11.3-11.5 afr. Duty cycles were already in the mid 90's. So like i said, once you raised boost from the factory, you were already maxing out the injectors.

 

isn't 11.5 reasonably lean though for this car? It seems you have a logger, what's the duty cycle on yours?

Your comment conflicts with what many have said thus far
-not until you upgrade turbo
-not until you reach xxpsi

Also It has been my understanding that the newer lancers w/ the 10.5 come stock @ about 20-20.5psi... I don't really think Mitsu would run it that close, b/c they use the same injectors.