i saw somewhere out there that parts from the 02 maxima i think it was will work on the 6th gen? is that true?

 

They have the same engine

 

so parts from an 02 engine will work with the 6th gen? such as headers?

 

Im not 100% sure but the headers may be slighty differnt due to the fact that the 02 doesnt have a subframe.

If your asking about performances parts , Altima SE-R headers will fit.

the 02s dont have a egr on the manifold.