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#11 |
Senior Member
Join Date: Sep 2007
Location: Henderson, NV
Posts: 586
Likes: 9
Liked 56 Times in 29 Posts
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I hope NHRA is not talking about the old style bolt on collector extensions that use the 3-bolt flange. I would think three 3/8" bolts with a 1/4" thick flange would be sufficient.
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