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what's the noise increase when adding resonator delete to secondary cat delete?

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Old 09-20-2017, 11:17 PM
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2013 C63 AMG P31
what's the noise increase when adding resonator delete to secondary cat delete?
Currently have secondary cat delete on my 2013 c63 and it sounds great. How much louder would adding a resonator delete make it percentage wise?
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Old 09-20-2017, 11:26 PM
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2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
15%
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Old 09-20-2017, 11:36 PM
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Old 09-20-2017, 11:39 PM
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33.3....repeating, of course.
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Old 09-20-2017, 11:42 PM
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15% at 2k rpm, 33.3% rep at 3k-4k rpm, 42% at 4k-6k rpm.
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Old 09-21-2017, 07:55 AM
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C63% increase in volume, 37% decrease of the pop pops. That gives you 100% change.
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Old 09-21-2017, 08:16 AM
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Originally Posted by Adam Chambers
C63% increase in volume, 37% decrease of the pop pops. That gives you 100% change.


I'm not sure why I keep checking the posts a few times a week. Maybe it's for the valuable information or the sarcastic answers to some of the idiotic questions.


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Old 09-21-2017, 08:23 AM
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It will be increase twice as much as it did when you took out the second cats.
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Old 09-21-2017, 09:31 AM
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Thanks I was expecting closer to 42% but since it’s closer to c63% I may stick with what I’ve got. Thanks for the knowledgeable answer to my ever so intelligent question
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Old 09-21-2017, 10:20 AM
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Originally Posted by jgottsman11
Thanks I was expecting closer to 42% but since it’s closer to c63% I may stick with what I’ve got. Thanks for the knowledgeable answer to my ever so intelligent question
C63% in Hex is 1263% so you should do it
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Old 09-21-2017, 02:23 PM
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Let's not forget about the increased wear on the muffler hangers.
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Old 11-20-2019, 02:05 AM
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There's an increase wear to the muffler hangers but your muffler bearings will need to be changed out every 6 months or 6K miles now.
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Old 11-20-2019, 11:10 AM
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Originally Posted by aguilar6222
There's an increase wear to the muffler hangers but your muffler bearings will need to be changed out every 6 months or 6K miles now.
That’s roughly the same service interval as the exhaust fluid, right?
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Old 11-21-2019, 02:21 PM
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No, its the same as your blinker fluid
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Old 11-21-2019, 02:27 PM
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So from my understanding exhaust oil is service A and exhaust bearings get done service B. Can anyone verify?
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Old 11-22-2019, 01:08 AM
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Originally Posted by whale63
So from my understanding exhaust oil is service A and exhaust bearings get done service B. Can anyone verify?
Make sure you don’t miss those service intervals otherwise you’ll be looking at a complete exhaust tear down and rebuild
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