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Old 07-29-2010, 06:07 PM   #20 (permalink)
Westwood
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Quote:
Originally Posted by WarmAndSCSI View Post
Yes, there are different gauges of steel, but it matters not for a catback exhaust for an NA car. Very little thermal stress is involved there. Even the crappiest welds would keep the exhaust together. Headers are a different story - thermal stress is exponentially higher at that point in the exhaust.
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