| UPDATE 04/18/15: Don't buy
these fuckin things... They finally arrived and
before I could even get them installed and the
bike up on our own dyno for testing other owners
started posting their own dyno results online and
basically the manufacturer claims for performance
increase on a stock engine is absolute bullshit.
There might be some gains to be had with a built
engine with internal mods (cams, pistons etc),
but I have zero intentions of doing that kind of
work to this bike so I've pretty much wasted $250
for some parts that don't even make good
paperweights. As far as I am concerned these Motomaxx Velocity
Stacks were misrepresented by the manufacturer
and the only way they might
improve overall performance on an otherwise stock
engine is with a 100% custom tune. I do not have
the time not the inclination currently to do a
custom tune on my bike as it sits just to turn
around and do it all over again when I install
the Motomaxx stacks. With gains (and losses for
that matter) so small on the exhibited dyno
sheets that is the only way to prove the validity
of these new stacks.
This
dyno sheet is not mine, but I believe it is an
accurate real world representation of the stacks
where the red line that is actually losing
horsepower is the new Motomaxx velocity stacks
installed on an otherwise stock engine.
Normally
I do not pursue such things, but due to a group
buy on a ZX-10R forum and the realistic looking
gains in performance shown from the manufacturer
I decided to give these a try.
They
are being built and should arrive in the next
couple weeks. Until then here are the stock
photos and dyno chart from the manufacturer
Manufacturer
supplied dyno chart
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