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Does it make sense to remove the centre catalytic converter in our exhaust system?
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<blockquote data-quote="astroboy" data-source="post: 538799" data-attributes="member: 4527"><p>I know of 2 E90s, both 6-potter refab exhaust from manifold onward, delete everything that's on the way.. :4: loud, but not to my liking. I suspect performance drop due to lack of back pressure.</p><p></p><p>U want to play with noisy exhaust, just get an after market rear box. The BMW Performance rear box is nice, about RM4k and they even have 1 for 4-potter, which comes with twin tail pipe. Nice! at about half the 6-potter price.. :wink:</p></blockquote><p></p>
[QUOTE="astroboy, post: 538799, member: 4527"] I know of 2 E90s, both 6-potter refab exhaust from manifold onward, delete everything that's on the way.. :4: loud, but not to my liking. I suspect performance drop due to lack of back pressure. U want to play with noisy exhaust, just get an after market rear box. The BMW Performance rear box is nice, about RM4k and they even have 1 for 4-potter, which comes with twin tail pipe. Nice! at about half the 6-potter price.. :wink: [/QUOTE]
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Does it make sense to remove the centre catalytic converter in our exhaust system?
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