Originally posted by XKontour98:
Nope, they are the same headers! And that is why im buying a set myself, for future 3L upgrading!



That "used" to be true.

MSDS now offers headers with slightly larger primary piping (1.75" vs 1.65") as well as the original size.


No back-to-back dyno testing but I would guess mid range power drops in favor of a little more very high rpm breathing. However 1.65" primaries are already pretty large for such a small displacement engine. (2.5L or 3L V6)


2000 SVT #674 13.47 @ 102 - All Motor! It was not broke; Yet I fixed it anyway.