1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

pre silencers question

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Old 02-09-02, 04:05 PM
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Question pre silencers question

original pre silencers, are they a hollow pipe straight thru and about the size of a oval cigar box, just wondering what their make up is and what they really do........and does the original exhaust have two pre and one main cat and then a muffler?, in that order to.

Last edited by DONNA; 02-09-02 at 04:10 PM.
Old 02-09-02, 06:10 PM
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I believe the first two are pre-cats... A silencer is a tube or box with steel wool in it...
Old 02-09-02, 07:20 PM
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Pre silencers look like a very big silencer for a gun. Because actually that is what they are, same concept. My RB presilencer is black and cylindrical. My 80 didn't have cats so I am not sure about a 85. My 86 second gen had two pre cats and a main cat though.
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Old 02-09-02, 07:23 PM
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and if u havent seen a gun silencer, it is a cylinder, and in that is anoher smaller cylinder that is porous, and in between the 2 is steel wool
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