how hard to change fuel injectors?

[fr0IVIan]

i think mine have gone bad from having a dirty fuel filter for too long (about 40k miles), i had a fuel system clean done at strauss auto and it didn't do shit, i could still hear a clicking/ticking sound when i got on the gas

so how hard is it? what do i have to take off, egr/upper/lower?

[stylin97]

upper intake and fuel rail... easy

[justin00v6]

Sounds normal, especially if you have a CAI.

[fr0IVIan]

this sounds worse than when i first put my cai on though, and that one was a mac, now i got a dmm

the sound gets worse the hotter the car gets, and it's freakin LOUD. i get too embarrassed to step on the gas sometimes, sounds like i'm driving an old truck whenever i get more than half an inch or so on the gas.