What modifications would I have to make to have a Greddy header, which is only offered for 4th gen Preludes, to fit on a 5th gen? I want to also put a 2.5 collector as well . After searching and seeing the greddy header, the o2 hole seems to be in a different place, what would be the best way to fix this; plug the hole and put it where it should be or would I not have to worry about it?

 

my friend has one on his 5th gen. he took it to a shop, and i think they added to/lengthened the header, and after some welding the o2 sensor line up.

 

I beleive the 92-96 header is a few inches longer than the 97+.

 

yes it is