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Replacing an exhaust silencer

I am replacing the silencer box on my BMC 1.8 engine with an identical 15 inch standard box from Midland Chandlers. Does it matter which way round the silencer is fitted? The new silencer can be fitted either way round,but at one end there appears to be holes in the internal pipework of the box. Many thanks

Asked by: Peter Heath  | 9.08pm, Tuesday 30 October

WW says:

The exhaust gases should enter via the end connected to the perforated pipe. This then allows the gases to expand into the main chamber, to cool and to reduce the pressure waves (which cause the sound).
Hope that helps.

Mark Langley  | 10.11AM, Wednesday 31 October

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