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Simple mods to make stock exhaust louder?

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Old 10-07-2018, 10:22 PM
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2017 C63S Coupe
Simple mods to make stock exhaust louder?
Has anyone done a resonator delete and did it make a difference?

I have done a resonator delete on my other car, it did wake it up however it also caused drone inside the cabin. Would the same apply here too? Open to other ideas as well but only looking for relatively small mods as Id like to stick to the stock exhaust. Thanks.
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Old 10-07-2018, 11:19 PM
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Get the 2nd cat gutted, lovely sound, louder and deeper (open hollow chamber).
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Old 10-07-2018, 11:38 PM
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Originally Posted by Zelvy Carbon
Get the 2nd cat gutted, lovely sound, louder and deeper (open hollow chamber).
That probably wont be an option for me as I would have to get a tune then to get rid of the CEL
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Old 10-07-2018, 11:46 PM
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Originally Posted by untamedd
That probably wont be an option for me as I would have to get a tune then to get rid of the CEL
No you won't, it won't throw a cell.
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Old 10-08-2018, 12:48 AM
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Originally Posted by Zelvy Carbon
No you won't, it won't throw a cell.

True. I could probably do a secondary cat and resonator delete and replace them with a straight pipe. Only thing I would be concerned about is drone inside the cabin
Last edited by untamedd; 10-08-2018 at 12:49 AM. Reason: adding content
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Old 10-08-2018, 12:53 AM
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There's a whole thread on this if you do a quick search.

2nd-cat delete, there is no resonator, there is no drone.
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Old 10-08-2018, 06:46 AM
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What year is it? if not 2018, buy the damn ASR module fast!! Plug and play, no cutting and makes sound like it should have been from factory
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Old 10-08-2018, 09:06 AM
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No smell after the second cat delete?
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Old 10-08-2018, 10:00 AM
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Originally Posted by KJ
There's a whole thread on this if you do a quick search.

2nd-cat delete, there is no resonator, there is no drone.
why does it matter if it’s 2018?
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Old 10-08-2018, 11:10 AM
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Originally Posted by lovepower1
What year is it? if not 2018, buy the damn ASR module fast!! Plug and play, no cutting and makes sound like it should have been from factory
ASR module? whats that?
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Old 10-08-2018, 12:59 PM
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Originally Posted by slowc


why does it matter if it’s 2018?
Originally Posted by untamedd
ASR module? whats that?
There was one year model that ASR module doesn't work on. ASR module gives you control over the PE valves.
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Old 10-08-2018, 04:36 PM
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Originally Posted by ScottsC63
No smell after the second cat delete?
No smell at all.

The secondary cats are post O2 sensor.
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Old 10-08-2018, 09:03 PM
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Originally Posted by lovepower1
What year is it? if not 2018, buy the damn ASR module fast!! Plug and play, no cutting and makes sound like it should have been from factory
I have a 2017. Can you go from 100% open using the module to going stock and using the exhaust button inside without plugging/unplugging unit?
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Old 10-08-2018, 09:09 PM
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Yes. You can go to stock and use the cockpit exhaust button by pushing the number 3 button on the ASR remote. You do not need to disconnect the device.
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Old 10-08-2018, 09:33 PM
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Originally Posted by superstarR
Yes. You can go to stock and use the cockpit exhaust button by pushing the number 3 button on the ASR remote. You do not need to disconnect the device.
they seem to have two products listed on their website but from what I can tell theyre both essentially the same and doesnt matter which one I get?
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Old 10-14-2018, 02:28 PM
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One version plugs in from outside the car. The new version get plugged in from inside the truck. It's best to get the version that works from inside the trunk.

FYI. The ASR only works with the performance exhaust and not the stock exhaust.
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Old 10-17-2018, 03:47 AM
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Originally Posted by superstarR
One version plugs in from outside the car. The new version get plugged in from inside the truck. It's best to get the version that works from inside the trunk.

FYI. The ASR only works with the performance exhaust and not the stock exhaust.
is it true the 2018s asr doesnt work because the exhaust valves are open 100% when you press the button?
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