The manufacturer must include the following statement pursuant to Sec. 205.173-4 with each product of that category the manufacturer distributes into commerce:
Warning: This product should be checked for repair or replacement if the motorcycle noise has increased significantly through use. Otherwise, the owner may become subject to penalties under state and local ordinances. [45 FR 86718, Dec. 31, 1980, as amended at 47 FR 57723, Dec. 28, 1982]