WHAT IS IT? LightSpeed makes two different styles of
carbon fiber air vents to help the 2014–’ 15 Husqvarna
airbox breathe more efficiently.
WHAT’S IT COST? $89.95 (louver panel), $99.95
CONTACT? www.lightspeedcarbon.com or
WHAT STANDS OUT? Here’s a list of things that stand
out with LightSpeed’s carbon fiber Husqvarna air vents.
(1) The problem. Instead of using an aluminum subframe with a plastic airbox inserted between the tubing,
Husky mimicked the exotic, one-piece, carbon fiber
subframes of the works bikes—only out of plastic. The
problem? The plastic Husqvarna subframe and its
airbox cover seal out the necessary airflow needed for
the engine. The result is an engine that gasps for air
under a load. Husqvarna is not unaware of the problem,
and between the 2014 and 2015 models, they opened
up sections of the plastic subframe via the Swiss-cheese
method to allow more air in. The 2015 subframe was an
improvement, but not a solution.
( 2) Homegrown fixes. When the MXA test crew rode
the Huskys without the left-side panel on, we noticed a
marked improvement in throttle response and low-to-mid
power. Our next step was to perforate the airbox cover
with a drill to let more air in. It wasn’t attractive but it
was effective. This is where LightSpeed entered the
picture. They had been making carbon fiber louver
kits to improve airflow on Japanese brands for years,
so they were in the best position to come up with a
clean solution to Husqvarna’s asphyxiated airbox cover.
LightSpeed makes two different Husqvarna airbox
vents: louver panels and KX-style vents.
( 3) Louver panels. Louvers gained public acceptance
as part of the 1950’s hot-rod movement when rodders
would put a series of vents in the hoods of their ’ 32 Fords
to vent heat out of the engine bay. Louvers are even stan-dard-issue on current Porsches. LightSpeed molds its louver panels from carbon fiber. They come ready to install
with the pop rivets included. All you have to do is cut a
hole in the airbox cover and install the louver over it.
( 4) KX-style vent. To get even more air into the
Husky airbox, LightSpeed copied the open-port airbox
vents from the Kawasaki KX450F. Instead of gill-like louvers, the vent has a large trapezoid opening with internal
flanges to direct the air inward. The LightSpeed KX-style
vent is harder to install because of its shape. MXA
made a cardboard pattern of LightSpeed’s shape and then
transferred it to the Husky airbox. We cut the opening
with a Dremel tool, taking great care to make sure that
the carbon flanges didn’t hit the Husky air filter. The
final step was to pop rivet the KX-style vent in place.
( 5) Performance. Motocross engines are little more
than air pumps. They draw air into the combustion
chamber and expel it through the exhaust. The more air
you can get into the engine, the more power you can get
out of it. Although both LightSpeed vents improved
airflow, the KX-style vent was noticeably better.
WHAT’S THE SQUAWK? Two grievances: (1) You
have to put tape over the vents when washing your bike.
( 2) You can drill holes for free.
We give the louver panels three stars
and the KX-style vents four stars.
LIGHTSPEED HUSQVARNA AIRBOX VENTS
MXA TEAM TESTED