I believe the flange for the Borla's in our application is 3/8", maybe even 1/2". I can't look now as it is so late.
For comparison's sake, what are the others.
Since the 304 is better at withstanding heat, I would think the flanges are less receptive to warping.
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"My reading of history convinces me that most bad government results from too much government."---Thomas Jefferson
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