I have over 110k miles on my car now.

Should I change my fuel injectors?
Do I need to change my programming if I do?
Will I see any difference if I change to 30lb injectors?

It looks like I can get a set of 30lb injectors for $150.

 

they wont give you any kind of noticeable gain and the stockers will hold up to more than 400 horses. but if you're gettin a deal you cant pass up, knock yourself out.

 

You can only see gains from bigger injectors if the old ones were too small, which is unlikely unless you have either a big cam, head/cam, or forced induction.

As far as should you change them, any reason to suspect they are causing trouble?

If swapping to 30lbs. a reprogram is 100% needed, they will add more fuel than the pcm is capable of adjusting out and worst case you wash down the cylinder walls fill the oil with gas and you blow the motor, best case it runs like crap and carbons up big time.

 

You definitely don't need 30# injectors given the mods in your sig. As mentioned, if you do decide to do them, you'll need a reprogram.

 

Don't worry about them unless you are planning a head/cam swap.