I just ordered the kooks 1 3/4 stepped to 1 7/8, but I got the 01-02 version since I don't want to go with egr anymore on my 2000 ws-6. I believe these headers still have the o2 fittings and air fittings. My question is were these the right headers I should have ordered? Anyway I purchased the catted y and hooker cat back.. I hope to feel some improvement over stock.. Any help greatly appreciated... Thanks Andy

 

That sounds like them. My set up is for a 99, but I got the 01/02 Kooks as well. The beautiful pieces arrived the other day. You'll have to get the PCM programmed to remove the EGR.

 

Should be fine, all the headers are the same other then emissions provisions.