Just a quick and easy question!

Will 2000 stock manifolds fit on a 1999 model?

I have some ideas rolling. I just need to know if it is possible to fit some manifolds from a 00 TA on to a 99 TA. This car has no emissions, so EGR placement is not an issue. I figure they would be the same, but I wanted to ask! Or, are all years from 98-02 interchangable?

Hope to find out! Thanks!

 

so long as you dont have the EGR like you stated then it'll bolt right in.

 

Thank you

 

You will need block off plates if you have yours deleted, because the 00's have the EGR hook up.

 

I know that, I already have it deleted, and block off plates on it now.

I just found out that the pass. side will not work. 98-99 is the same, and 00-02 is the same. The difference is the flange on the y-pipe of the 00+, it won't mate up to the 98-99 style. That is why when and if you buy a y-pipe for these cars, they are: 98-99 and the 00-02 to choose from.

Thanks all!

 

Actually the manifold breakdown goes like this:

98-99 Have AIR tubes and EGR, tubular design
00 Have revised AIR tubes (rotated ~90 degrees) and EGR, cast iron design
01-02 Have revised AIR tubes (same as 00) and no EGR, cast iron design

That should help you out.

 

That is correct, but my point is...

But the flange at the y pipe also changes after 99. That is why when you buy a ypipe for a LS1, you have a division of years-98-99 and 00-02. That is why you can't use 00-02 manifolds on a 98-99 model.

Edit: To be specific, it is the pass. side manifold flange that changes. The flange that mates up to the y pipe. This is b/c of removable cats.