Section 27150.3 - Modification of exhaust system prohibited; whistle-tip(a) A person may not modify the exhaust system of a motor vehicle with a whistle-tip.(b) A person may not operate a motor vehicle if that vehicle's exhaust system is modified in violation of subdivision (a).(c) A person may not engage in the business of installing a whistle-tip onto a motor vehicle's exhaust system.(d) For purposes of subdivisions (a) and (c), a "whistle-tip" is a device that is applied to, or is a modification of, a motor vehicle's exhaust pipe for the sole purpose of creating a high-pitched or shrieking noise when the motor vehicle is operated.Added by Stats 2003 ch 432 (AB 377),s 1, eff. 1/1/2004.Repealed by Stats 2001 ch 92 (SB 1081), s 5, eff. 1/1/2002.