Ford Mustang Shelby GT500 2020 Supplement Manual page 54

Moving the wing up increases rear down
force and overall understeer. Moving the
wing down decreases the rear down force
and overall understeer.
Rear Gurney Flap
E307008
The rear Gurney flap must be removed
for on-road driving.
Your vehicle may include a removable
Gurney flap in the luggage compartment.
The Gurney flap greatly enhances high
speed stability and performance on the
track. It is recommended that you use the
Gurney flap at all tracks featuring high
speed corners and can be used at any track
regardless of cornering speeds.
Smaller tracks with maximum cornering
speeds below 70 mph (112 km/h) may
benefit from the removal of the Gurney
flap to improve low speed balance. It is
recommended that the user attaches the
Gurney flap for all track events and
carefully assess both the vehicle's
condition and the users capability before
removal.
Mustang (CZG) GT500, United States of America, Vehicles With: SVT Performance Package, enUSA, First-Printing
Track Use
E310471
E310472
Note: The Gurney flap comes with longer
size bolts to install it onto the rear spoiler.
Do not use the longer size bolts without
the Gurney flap attached or damage to
the spoiler may occur.
Front Splitter Wickers
E307008
The front splitter wickers must be
removed for on-road driving.
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