Where is the Inlet Air Temperature SENSOR located on a 2000 Silverado Z71 with 5.3L

Jus bought a GorillaChipz...and it saids to disconnect plug from the IAT sensor and connect the GorillaChipz to the wiring with the plug-end.....DON'T connect plug to IAT sensor.

ALSO.......what is the BEST....cold air intake??????? I am LOOKING at a Volant truck kit w/box(#15053) and a Volant Ram Air Scoop(#35853)

THANKS for ANY ADVICE......need HELP before SPENDing HARD EARNED MONEY on some JUNK....... (trying to get a little more performance out-of the 5.3L)

THANKS AGAIN!!!!!!!!!!!!!!!!