The introduction of lead-free fuel and the advent of the catalytic converter have revolutionised the entire exhaust industry. Exhaust systems now last far longer and although replacement is costly, these systems are virtually maintenance-free and seldom replaced. Noise Boys is completely conversant with the workings of catalytic converters and is able to provide all products and services relating to them. The developments around catalytic converters have contributed to Noise Boys successfully diversifying into the servicing of vehicles and also into the provision of a wide range of branded vehicle accessories and other related products and services.