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Extractor / Header for M54B30 330i & 530i
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<blockquote data-quote="ess530i" data-source="post: 403510" data-attributes="member: 13496"><p>option 2 and 3 is to replace the stock header entirely and to decat. we think the cat is stucked and restricting exhaust flow therefor increasing the boost pressure. also explains why the AFR is rich coz less air coming in. ceramic coating is too expensive for my budget which has been cut hehe. also ah wai said its not as good as thermal wraps... almost like no difference with no coating</p></blockquote><p></p>
[QUOTE="ess530i, post: 403510, member: 13496"] option 2 and 3 is to replace the stock header entirely and to decat. we think the cat is stucked and restricting exhaust flow therefor increasing the boost pressure. also explains why the AFR is rich coz less air coming in. ceramic coating is too expensive for my budget which has been cut hehe. also ah wai said its not as good as thermal wraps... almost like no difference with no coating [/QUOTE]
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Extractor / Header for M54B30 330i & 530i
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