Thread: New Doug's Headers: Is this normal?
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  #32  
Old 09-15-2021, 10:19 AM
66sprint6 66sprint6 is offline
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I'm watching ths thread with great interest, as I will likely be going with the Doug's round port 567's also. I see on their website that the flanges are 3/8", or .375", which is 9.525mm

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