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Originally Posted by jgreek
What does the "bent over Mandrel" mean? Thanks.
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It means its literally bent over a mandrel...a mandrel being a form that is inserted into the pipe before its bent maintaining its original Inside diameter...
Muffler shops do what is called a crush bend which leaves the pipe smaller than before it was bent and causing a restriction.
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Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
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