I know this is a dumb question, but I'm about to install my PR Cai. There's a hole the size of a quarter in the tube of my PR Cai. What the heck plugs into therE? Or does it stay open?

I would assume one of the intake sensors?

Air temp sensor.

Where do I pull that one out from? How's it look?

Should come off the tubing that runs from the scoop to the stock airbox.

What he said... also, make sure you pull off the rubber piece that goes around the sensor also (used to keep the sensor in place).

Listen to Kev's advice. He's actually had one on his car.

Right now I already have the JWT. I know I have to use the sensor from the tube that the JWT used. But I still don't know which one to use where the hole in the PR Cai. Sorry for sounding dumb.. Not too great of a mechanic..

The black plastic air scoop on top of your radiator... there's a sensor near the bottomm of it. That's the air temp sensor.