Hello All, I wanted to know if anyone knows what size fuel injectors I should get for my M35 for increased performance without causing the car to run too rich. Would I need to find a better fuel pump as well? Someone recommended OEM GTR injectors but I didn't want to do anything till I got a confirmation from someone more knowledgeable in the subject.

Thank you

Welcome to the forum. I can't say this is a topic I recall being discussed here so I can't help with which injector works. I will say that, even if you get ones that don't cause the car to run too rich, you should still get it tuned as a best practice via UpRev or some other method.

Stock injectors are fine for tuning with up as far as the stock intake will let you go. You would have to either go FI or do a major throttle body, manifold, oil pump gears, and valve springs upgrade with a tune for 7500rpm limit to need any kind of injector change.

Stock VQ35DE engines already run rich with factory injectors at wide open throttle. Adding more will just hurt power more than help.