I'm not sure if this is the right forum, but its wiring so i figured it is.

I keep reading about people going to there local PAP for pigtails. Is there a certain years/makes/models to narrow down the search. 01 tahoe harness, to LS2 injectors (i believe from a 06 GTO).

Also I've read car injectors are different for truck injectors. Whats the difference?