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Brando Brando is offline
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Join Date: May 2003
Location: Land of Liberty, NH
Posts: 6,501
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Angry 2006 Cayman - Header Exhaust Bolt Size

Hey all - I've been searching furiously without luck. I am trying to find out the size of the exhaust bolts that attach the exhaust manifold / headers to the head. I know they're a 13mm head but I have also heard that these can be replaced with allen-head bolts. I am having trouble matching the thread length, diameter and pitch.

Can anyone help?

Thanks!
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Old 04-23-2014, 03:03 PM
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