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The BMW Range
3 Series
removal of catalic converter
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<blockquote data-quote="k3nny" data-source="post: 69571" data-attributes="member: 139"><p>In newer BMW's, there is a sensor before the cat, and after the cat.. </p><p></p><p>If you remove your cat, these 2 sensors are going to give the same reading and your DME will as have the car running rich...</p><p></p><p></p><p>Dont ask me why. Someone else has to elabourate. <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></p><p>Thats what my mech said.</p><p></p><p>Im running a full straight system with no cat and 1 hi-flow resonator on an E46.</p><p></p><p>Sounds great and i prefer it this way. If can be louder, i would rather it louder but i dont want to remove the resonator as well.. might lose power..</p><p>not that its alot but i dont have much to begin with.. anything is something. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="k3nny, post: 69571, member: 139"] In newer BMW's, there is a sensor before the cat, and after the cat.. If you remove your cat, these 2 sensors are going to give the same reading and your DME will as have the car running rich... Dont ask me why. Someone else has to elabourate. :) Thats what my mech said. Im running a full straight system with no cat and 1 hi-flow resonator on an E46. Sounds great and i prefer it this way. If can be louder, i would rather it louder but i dont want to remove the resonator as well.. might lose power.. not that its alot but i dont have much to begin with.. anything is something. :) [/QUOTE]
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The BMW Range
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removal of catalic converter
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