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I noticed in the OTHER section when tuning a car (where the weight reduction options are) there is a body rigidity refresher option of 50,000cr that explains it will restore a car's rigidity back to new conditions (or if you have a roll cage upgrade, back to the level it was hen the roll cage was installed). My question is how often or when do I need to do this to a car? After I've driven it a few hundred miles, a thousand miles? What signs will the car's handling show that will tell you that you need to restore the car's rigidity?