how difficult is it to install headers on a 2000?

 

I think it's harder to get the old ones out, then get the new ones in. From everything I've read, it's kind of a pain. http://www.cardomain.com/ride/278896/9

 

it is very much so a pain. It is the most difficult thing I have ever done with any car ever. Even working with internals is easier, at least you have room to work.

In 2000, chevrolet updated the stock manifolds for the 3800 so they flow better. Unless you have serious plans for the car I would not recomend them.