I got the Doorman replacement Plenum it included all the gaskets and assorted hardware for $133 from Autozone. Pontiac wanted $167 for just the Plenum. Turns out thr runners in my old one were melted internally and it was warped where the TB stud was missing for who knows how long. Im just taking my last break from putting it back together. It was so simple even I could do it! LOL

Thanks. I didn't think you could get one from AutoZone.
I just wonder about the quality, knowing how some of the products they sell are el cheapo sometimes.

Yeah you can get them from AZ or Discount/Advance. I am sure where you live whatever big chain is there sells them.

Here is the Doorman page:
https://www.dormanproducts.com/cgi-b...rch_cat=Intake Manifolds,Intake Manifolds&st_amount=0&end_amount=999999999.99&star t=0&vfrom=&prev=yes&vnext=no&category_list=1504:78 :0

Im glad I decided to look in the manifold while changing the UIM gasket. The damage is wores than the pictures show.

This is the runner closest to the EGR tube



Here is a comparison. New on top