injectors on a KA

[D.Drifter]

i got a new engine and noticed that it has dark grey injectors rather then the red ones i had. my question is how can i tell the difference between KA stock, SR stock, or after market and how much is it pushing? im pretty sure the red ones are the KA oem. but need to know witch ones the grey ones are. thanks!

[Walperstyle]

flow tested to be 100% sure what you have

[jdunkz]

if they have a purplish dark grayish tint to them they are probably 370cc sr20det injectors. If you want to know for sure pull one off and Google the parts # on it. It will also say jecs if its a nissan injector

[modulation]

i got a new engine and noticed that it has dark grey injectors rather then the red ones i had. my question is how can i tell the difference between KA stock, SR stock, or after market and how much is it pushing? im pretty sure the red ones are the KA oem. but need to know witch ones the grey ones are. thanks!

I agree with the dude above, they are probably purple tops from a Q45, 300zx turbo or Sr20.

They look grey after they've aged (when I go to junkyard I look for grey-tops haha.)

They go for a decent amount on ebay, I found mine off a q45 and was hitting the max duty cycle on the stock ones even though I'm only NA.