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Extractor / Header for M54B30 330i & 530i
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<blockquote data-quote="ALBundy" data-source="post: 403511" data-attributes="member: 15"><p>Bro,</p><p> </p><p>I seriously doubt the catalytic converter is the issue as the air mass sensor will measure the amount of air getting into the combustion chamber. However there is no harm to de-cat and see what happens next. </p><p> </p><p>As for ceramic coating, I have done it before for a 4 cylinder extractor and it cost RM600. Worked well for me and the thermal difference was evident in the m42 turbocharged engine <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p> </p><p>Alternatively is to go for high grade stainless steel extractor as it retains heat better than normal stainless steel used by Wai Heng or other local fabricators. It is also interesting to note, BMW used triple layered steel pipes in the higher end models <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p> </p><p>CHeers</p></blockquote><p></p>
[QUOTE="ALBundy, post: 403511, member: 15"] Bro, I seriously doubt the catalytic converter is the issue as the air mass sensor will measure the amount of air getting into the combustion chamber. However there is no harm to de-cat and see what happens next. As for ceramic coating, I have done it before for a 4 cylinder extractor and it cost RM600. Worked well for me and the thermal difference was evident in the m42 turbocharged engine :) Alternatively is to go for high grade stainless steel extractor as it retains heat better than normal stainless steel used by Wai Heng or other local fabricators. It is also interesting to note, BMW used triple layered steel pipes in the higher end models :) CHeers [/QUOTE]
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Extractor / Header for M54B30 330i & 530i
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