NISSAN 2014 GT R - Owner's Manual - Manual (Page 14)

EXTERIOR PARTS (spoiler, etc.)
Do not modify exterior parts.
The GT-R was developed using a special wind
tunnel to help make sure the vehicle is
aerodynamically balanced. Additionally, the wind
tunnel was used to help make sure cool air flows
to the brakes, radiator and other components.
Additions of non-genuine GT-R specific acces-
sory exterior parts can change the air flow over
and around the body. This can affect vehicle
balance and cooling of various systems.
For example, if the front bumper is modified,
there is a possibility that brake cooling perfor-
mance may be reduced due to the decrease of
the air flow to the brake system.
Use only GT-R special specification parts.
Front bumper
The shape of the bumper helps pull air into the
engine compartment through the front wheel
housing to cool the radiator and brakes. Instal-
ling an aftermarket bumper may affect the air
flow in the engine compartment and decrease
the brake and engine cooling performance. An
aftermarket bumper may also change vehicle
balance by reducing front down force.
Rear spoiler
Installing an aftermarket rear spoiler may change
the down force balance between front and rear
of the vehicle. This can affect the handling
characteristics of the vehicle and affect the
operation of the ABS and VDC systems.
NOTICE
Modifications to exterior parts may
affect engine and transmission cooling
performance which can increase the
temperature in the engine compart-
ment. This can affect the operation or
damage parts located in the engine
compartment.
DRY CARBON FIBER PARTS (if so
equipped)
The dry carbon fiber parts are made using the
same composite method used for race cars. The
dry carbon fiber parts has a special coating to
enhance the feel of the material.
NOTICE
. Do not use chemical agents (for
example: wax, coating agent, com-
pound agent, etc.) on the dry carbon
fiber parts because they can da-
mage the material. When the carbon
fiber parts become dirty, dilute one
cap of mild detergent with a bucket
of water and use that mixture to
clean the carbon fiber parts.
. The dry carbon fiber parts may turn
yellow due to age deterioration
because of the characteristics of
the material. Storing the vehicle
outside in direct sunlight for ex-
tended periods of time may cause
discoloration and deterioration.
NISSAN recommends that you do
not store the vehicle in direct sun-
light to protect the rear spoiler.
NOTE:
The surfaces of the dry carbon fiber parts
are lightly coated like a race car so that
you can feel the proper texture of real
carbon, which may feel rough. This is
normal.
GT-R Overview GTR-7