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Old 01-22-2008, 05:43 AM   #2
CyFi6
3" Exhaust
 
Join Date: Oct 2007
Location: SLO
Posts: 234
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1/8 BPT, if you mix npt with it without an adapter youl strip it a little bit. Supposedlt BPT has 1 more or 1 less thread per inch than NPT
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