This is a GM style IAT KIT Comes with the weatherproof connector and 3 (1 extra) crimp pins pigtails just install ugly ! for the intake air temp sensor with faster acting element.
The threads are 3/8 NPT( check other listing for iat KIT with BUNG Aluminum or Steel)
GM-style sensors for use as stock replacement for many GM CARS! or
with stand alone line of ECUs like:
SDS
Haltech
Megasquirt
FuelTech
Holley EFI
FAST
Microtech .