I have a question. If I increase the injector size above stock,( not sure what stock is) i.e. 21#. With a CAI as a mod i already have, will that create enough air/fuel mixture as to not run rich, or would i need to have boost?
let me know if i need to be more specific.
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Just increasing the injector size will not, but if you get a chip+injectors (programmed for the bigger injectors and other mods that you have) then yes it would help. But injectors on their own, no. Assuming that your CAI actually works and increases the airflow.
the only way bigger injectors are good as a mod , is when you max out your stock injectors. in the case of NA , or to be more specific bolt on mods, there is absolutely no need to install bigger injectors.
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