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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > All-Wheel-Drive (Xi / xDrive) Talk > secondary Cat.. i vs xi



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      09-05-2012, 08:45 AM   #1
mashimarho
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secondary Cat.. i vs xi

I have the e92 n55 xi. I'm wondering if I remove my secondary cat if it will make a difference on my exhaust note... Does anyone have a picture of the two stock exhausts side by side? Where is my secondary cat located?
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      09-05-2012, 08:51 AM   #2
mashimarho
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Correct me if I'm wrong..

Is this it? Because I know one is on the downpipe (which I swapped out for catless DP) So, we started with four... I removed two... If these are the remaining two, then I can remove these to make..... zero!


The cats towards the top are only found on xi right?


#1 & #2

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      09-17-2012, 08:03 PM   #3
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Sound better now...

http://www.e90post.com/forums/showthread.php?t=707930
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