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The BMW Range
3 Series
E46
Aftermarket exhaust
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<blockquote data-quote="B33mEr" data-source="post: 663823" data-attributes="member: 13609"><p>If you mean taking out the cats at the manifold yes but then you have to remap to take out the check engine light and a tune to optimise the mods.</p><p></p><p>The correct approach would be getting the a proper exhaust manifold like these guys are making - <a href="http://www.motorsportsdownunder.com/catalog/i41.html" target="_blank">http://www.motorsportsdownunder.com/catalog/i41.html</a> They even make a turbo manifold :4:</p><p>But it is expensive since not many company is willing to make rhd manifold for the M54 ... whether you can justify the cost is up to you really.</p><p></p><p>P/s: i know one guy that installed headers from motorsports Downunder for his 523i M52 engine ... From what i can tell he loves it and there is no issue. Admittedly M54 is a more complex system specially with the DME.</p></blockquote><p></p>
[QUOTE="B33mEr, post: 663823, member: 13609"] If you mean taking out the cats at the manifold yes but then you have to remap to take out the check engine light and a tune to optimise the mods. The correct approach would be getting the a proper exhaust manifold like these guys are making - [url]http://www.motorsportsdownunder.com/catalog/i41.html[/url] They even make a turbo manifold :4: But it is expensive since not many company is willing to make rhd manifold for the M54 ... whether you can justify the cost is up to you really. P/s: i know one guy that installed headers from motorsports Downunder for his 523i M52 engine ... From what i can tell he loves it and there is no issue. Admittedly M54 is a more complex system specially with the DME. [/QUOTE]
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