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Exhaust Stud Thread Pitch?

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Old 09-28-11, 08:51 PM
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Exhaust Stud Thread Pitch?
Can anyone tell me what thread pitch (size) the exhaust studs are? These would be the studs in the OE midpipe/cat that would mount it to the downpipe or cat back.

Thanks!
Last edited by ptrhahn; 09-28-11 at 08:57 PM.
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Old 09-29-11, 02:46 PM
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Anyone? It's gotta be M12-something.
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Old 09-30-11, 12:38 AM
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I believe they are m10x1.5
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Old 09-30-11, 08:19 AM
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No, they are definitely M12, and NOT M12x1.75. Maybe M12 x 1.5.
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Old 09-30-11, 11:07 AM
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They're M12 fine pitch. Not the regularly available M12(-1.75). I don't recall if it's M12-1.25 or M12-1.5, just measure them.
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Old 09-30-11, 03:22 PM
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If you still need this info pm me. I've got a thread pitch gauge and a pulled engine! I will probably forget to check by the time I get home, so just pm me a reminder.
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Old 09-30-11, 05:10 PM
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I just verified with a spare main cat that I had---- they're M12x1.5
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