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Necessary of Rear Spoiler Wing
As we all konw the car body exsit airflow difference in high speed driving. When the airflow difference is too large,the rear wheel grip reduced and driving unstable, even lose control causes car accident.
BUT after install a rear spoiler wing, the above will not occur.
Rear spoiler will change the roof airflow, makes the roof pressure greater than the ground and increases the ground grip to keep stable driving.