Quote:
Originally Posted by chknhawk
On a side note. What exactly Is the HP gains from the headers. I have been briefly looking at some of the header installs and the header look pretty much like stock except they are wrapped and purty. Is there really any NA HP gains or would they header be more useful in a FI setup?
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Going to long tubes with a tune, you can generally net 15-25HP depending on the engine, conditions and supporting mods and specific configuration of the headers themselves.
Shorties, basically no gains unless you get the Momentum headers. Those see significant gains, within the realm of the long tubes.