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The BMW Range
3 Series
M20 performance headers/extractors
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<blockquote data-quote="Jules" data-source="post: 76984" data-attributes="member: 88"><p>crack under heat? I can only think of the cyclic stress coming from the heating & cooling of the headers.....</p><p></p><p>hence thinner not always better.....but million dollar question is how thin? </p><p></p><p>I guess, a thermal blanket could promote that....cos it brings the temp higher and hence the tem diff when cooled down bigger....make sense ah? I still think if thicker....no issue and of course different material...ie. SS!</p><p></p><p>just my observation...</p></blockquote><p></p>
[QUOTE="Jules, post: 76984, member: 88"] crack under heat? I can only think of the cyclic stress coming from the heating & cooling of the headers..... hence thinner not always better.....but million dollar question is how thin? I guess, a thermal blanket could promote that....cos it brings the temp higher and hence the tem diff when cooled down bigger....make sense ah? I still think if thicker....no issue and of course different material...ie. SS! just my observation... [/QUOTE]
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