Found this on Ebay..
 

After reading all the posts about the upper intake failure i becam paranoid about this "inevitable" problem.

I found this intake on ebay and the seller is saying that this intake is:

http://cgi.ebay.com/ebaymotors/ws/eB...category=36474

Is it true what he says about it:

"GENERAL MOTORS ENGINEERING INSTITUTED DESIGN CHANGES AND ELIMINATED THE PROBLEMS CONNECTED TO THE OLD MANIFOLD UNITS. THEY FIRST BECAME AVAILABLE TO GM DEALERS IN FEBRUARY OF 2004"

they were actually "revised" to our knowledge sometime in 99

Re: Found this on Ebay..
 

I think they did re-design the EGR stove pipe in 1999 and made it a smaller diameter, however I think the manifold hasn't changed t all. I don't believe that the 2000+ Pontiac 3800's will have the upper manifold failure like the previous generations of the 3800 series 2 N/A engines.