Exhaust Work in Vantaa

When the exhaust needs renewing

In Finland exhaust system life is often shorter than vehicle life. Road salt corrodes the outside of the pipe and moisture condenses inside over short trips, causing rust to attack from both sides. A typical Finnish exhaust lasts 6–10 years — longer with plenty of motorway use, noticeably shorter with heavy short-trip city driving. The first symptom is often a deep, loud exhaust note that rises with acceleration. Small holes or leaks in silencer seams also increase exhaust drone. A worse problem is the pipe detaching from its rubber mount and scraping the ground — a metallic grating noise from underneath over humps and kerbs. At MOT the exhaust is measured with a decibel meter and the passing limit is 94 dB for passenger cars. A broken silencer or an internal hole easily exceeds this. Another common fail reason is an exhaust leak upstream of the cabin — that creates a gas poisoning risk for the driver.