The exhaust system is one of the most hard working components on your vehicle. It is constantly in use whilst the engine is running. An exhaust system on most vehicles usually comprises of four sections: Manifold, Front Downpipe, Centre Section, and Rear silencer box

A defective exhaust will mean the vehicle fails the MOT test. It also causes excessive noise; thereby rendering the vehicle illegal which could lead to a fixed penalty fine. All vehicles registered after 1993 a catalytic converter is fitted. The most common section to become defective is the rear silencer as moisture gathers inside the box and attacks the metal. Corrosion from the inside results in hole, which causes the exhaust to blow.
Catalytic Converters
'How long should a catalytic converter last? It's not unusual for catalysts to last 10 years, though actual life depends on mileage and engine tune. 50,000 miles is perhaps a more reasonable benchmark, and most owners can expect to replace the catalytic converter once during the life of the vehicle. If failure occurs early, it's important that the reason for failure is identified and the cause rectified before fitting a new CAT, otherwise the replacement can be expected to fail prematurely too.
Eagle Autos will find the cause of failure
Modern car exhaust systems are fitted with a catalytic converter to reduce harmful emissions of fuel hydrocarbons, carbon monoxide and nitrogen oxides into the atmosphere. The catalytic converter converts the hot fuel combustion gases into water vapour and the less harmful gases: Nitrogen, Oxygen and Carbon Dioxide.