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The golden age of automobile tuning in the United States were the years after World War II . The tuning is synonymous with customization of a motor vehicle through different modifications of the mechanics for increased performance and also popularly applied to exterior changes of the body and even cabin interiors although this really would not be tuning ( tuning ) but customizing ( customizing ) . to custom cars it is well identified and seeks greater uniqueness and originality of the vehicle , away from the appearance of the series and orienting own taste. The modification of the mechanical properties and appearance , can not always be accredited to circulate legally , so all modified vehicle engine must be legally reviewed and approved for driving on the streets.
