Noisy car mufflers

Through your newspaper I would like to draw attention of the city's traffic authorities to the loud noise making car mufflers. During last several years it has become a fashion, especially for young people, to remove the original silencer and replace them with extremely loud noise producing mufflers. These mufflers are as bad or even worse than hydraulic horns, the use of which was stopped successfully by the Dhaka Metropolitan Police.
I reside in Dhanmondi and it has become a menace to the locality. I have seen numerous times teenagers(apparently under 18 years) driving around Dhanmondi with these mufflers. In majority of the cases the cars have dark glasses which is also a violation of traffic law.
I request the traffic authorities to take this matter into notice and, if need be, enact the necessary law to stop use of loud mufflers.