I recentely did my 160* thermostat and noticed that at the bottom of the intake elbow was a long plastic tube. Can someone tell me the reason why this Resonator tube is the in the first place, it doesn't lead anyway, just drops down

 

It's a "silencer". I think it is supposed to quiet the noise air makes when being sucked into the throttle body. Pretty much useless. The 1LE elbow has it removed. I bought one when I tore the rubber on my original. I couldn't tell any difference in sound between the two.

-Nate

 

What is the '1LE' intake elbow, who makes it?

 

It is a genuine GM part. It was original equipment on f-bodies that were equipped with RPO 1LE.

 

GM makes it, it is the same but the hole for the silencer is not open

 

I couldn't tell any difference when I plugged mine.

 

I never noticed any diffrerence either. IMO, don't waste your money on the 1LE for a 'mod'. If you rip your original, then maybe. But you probably will not notice anything.

-Nate