What is this?

[digdoug713]

What is this hose? Where should this end be connected at?https://photos.app.goo.gl/qSYUV99oDt5YRk6C7

[jdog]

Stovepipe is the name of it, it goes between the exhaust manifold and the air box, it is designed to bring warm air to the air box when it is cold. It can be removed as most of them are torn because of the age, or you can buy a new one.

[digdoug713]

I thought so, I just wanted to be sure before I removed it... Best to cap off where it comes from the manifold after removing it?

[Ωhm]

32 minutes ago, digdoug713 said:

Best to cap off where it comes from the manifold after removing it?

 

No need to cap it off. You can just leave it as is.

[digdoug713]

But would it not be best to keep cooler more oxygen rich air than emissions around my intake?

[Ωhm]

Its sole purpose is to direct heated air (heated by the exhaust manifold) to the airbox during a cold weather startup condition. Once underhood temperature rises enough, the airbox will switch from heated air (stovepipe) to the fresh air inlet.

[Pete M]

2 hours ago, digdoug713 said:

But would it not be best to keep cooler more oxygen rich air than emissions around my intake?

 

if you pull the tube, what remains is just a simple heat shield on the exhaust pipe.  won't hurt anything.  the diverter in the airbox intake on the other hand should probably be removed.