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Old 08-04-20, 02:05 PM   #10
mikes2
4 ring whore!
Classic Audi Club Member
 
Join Date: Nov 2007
Location: Polmont
Posts: 2,617
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5/16" or 8mm.

Kunifer is the preferred material as copper cracks with vibrations making it unsuitable for automotive use
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1991 90 quattro 20v sport
1991 90 quattro
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