Rick Barnes wrote:
> Please explain how it could have a "tuning effect that will improve air
> flow"...just curious how a spacer could "tune" anything.
>
> Rascal
they change the plenum volume... I've heard because the jeep inlines
have really small plenum, increasing plenum volume can boost power.
http://www.jeep4.0performance.4mg.com/intake.html <--scroll to 3rd paragraph
whether this applies to both the 4.0L and 2.5L manifolds, I don't know.
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