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Grommets are small rings or eyelets that are inserted into a hole in a material to reinforce it and prevent tearing or fraying. In auto tuning, grommets are commonly used to protect wires and cables from chafing against sheet metal or other sharp edges in the engine bay or passenger compartment. They also help to dampen vibrations and noise. Consider material, size, and flange diameter when choosing grommets for your auto tuning project.
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