Being that the 99 comes with 19lb injectors, I want to upgrade to the 26lb injectors found in the 2000+ trucks. Joejoe has a spare set laying around from his old setup and I was wondering if it is just plug in and play or do you got to mess around with anything else? (fuel pump, tuning) They have about 18k miles which is when joejoe blew his motor.

 

You'll probably need a slight adjustment needed in the fueling tables.

 

They should plug in and do fairly well as is. I think the flow is more like 22# for the 99's and 25# for the newer ones.