Positively, yes: most companies providing insurance policies in the USA offer such a possibility. In most cases, a modified exhaust will be covered; however, a rider or an endorsement may be required to get it done. Furthermore, this can have a considerable influence on one's insurance stats. It is only natural for Americans that even an insignificant vehicle modification, be it of a cosmetic nature or the technical one, can affect the insurance requirements. To not be caught by surprise by sudden expenditure, we strongly recommend getting acquainted with types of car insurance and the effect of mods before you decide to pull out some new modifications on your car. Speaking of the exhaust system, in particular, modification of it may get you to receive a customized insurance policy. Your company insurer must be aware of all, if tiny, modifications carried out on your car. Mind that, for it will be of importance when an accident occurs. Aaa Lawrenceville Car Care Insurance Travel Center.