TAMPERING WITH NOISE CONTROL SYSTEM PROHIBITED
Federal law prohibits the following acts or the causing thereof: (1) The removal or rendering inoperative by any person
other than for purposes of maintenance, repair, or replacement, of any device or element of design incorporated into any
new vehicle for the purpose of noise control prior to its sale or delivery to the ultimate purchaser or while it is in use, or (2)
the use of the vehicle after such device or element of design has been removed or rendered inoperative by any person.
Among those acts presumed to constitute tampering are the acts listed below:
Replacement of the original exhaust system or mufﬂer with a component not in compliance with Federal
Removal of the mufﬂer(s) or any internal portion of the mufﬂer(s).
Removal of the air box or air box cover.
Modiﬁcations to the mufﬂer(s) or air inlet system by cutting, drilling, or other means if such modiﬁcations
result in increased noise levels.