magnum factory exhaust sizes question

Dang auto correct.

I just measured some from a 2000 5.9 at 1.9 inches.

If they fit in the engine bay, I plan to use them on my 318.

The factory 73 non-HP 318 manifolds measured 1.6, so that's a pretty significant increase.


IIRC 1992 was the largest, but not sure of the actual measurement.


Tell Manny Holmes we're sorry.