HELP! AIR pump line route

[LT4Thunder]

I have to do some work on my exhaust to be able to comply the new OBDII regulations that NY is implementing this year. ad

My existing exhaust has long tube headers with no cats and the air pump lines removed. The 4 O2 sensors are there and will be replaced along with set of new high flow cats. I will have to reinstall new air pump lines but I am not sure where they connect. I assume I would need to connect to the cats, but I have also read of a connection at the manifold or in my case the headers.

Can someone take a look at their setup and let me know? I need help!

 

[LannyL81]

On the stock LT4; the AIR lines go into the exhaust manifolds at the top center. This lines also goes into the rear of the intake manifold...after that I have no clues and would need to go take a better look.

I can take pictures, let me know of where.

Later,
LannyL81
Tucson, AZ

 

[LT4Thunder]

Thanks Lanny.
I looked on AllData computer program for the parts I am missing and it showed a connection right where you said. The tubing I need to add looks cheap so I am sure it won't be.
My high flow cats should be here tommorrow. Once I have those installed I will tackle the AIR system.
Thanks again for the response.

 

[bob eshleman]

secondary air

Hi, this is what the NYSInspection fault will read with the air pump off,but it will pass the inspection without it.I live in central NY and just went through it. Don,t hesatate to contact me about this.I will be glad to tell all you need to know. thanks bob.