How often do injectors go bad?

[staubach333]

I hear stories of stuck injectors blowing motors and it scares me a bit. I've put a lot of money into this motor thus far and it literally runs perfect...it'd kill me if something like that happened to me. My injectors are original. Am I being paranoid? Lol. Just trying to protect my 'investment' if you will...

[TarlCabot]

not very often, we don't "keep" spare around just in case... iirc there will likely be a code when one is acting up or going bad, misfires and such