Active sound module
04-19-2018, 05:11 AM
#126
Super Member
No problem! I'm going to order one of these very soon, I think it's exactly what this car needs - more bass and low end rumble! I always find myself giving the car some extra throttle for a stop to get the valves to open more. And if you're very observant, you'll notice that when stopped, the more pressure you put on the brakes the quieter the car idles. Easiest way to hear this is when using the "hold" function by pressing the brake hard quickly at a stop. It will shut the valves instantly and idle quietly even with the OEM exhaust button on. This is obviously something AMG programmed for noise regulation and pedestrian comfort.
I really don't like the way the M177 sounds with catless downpipes, you lose that nice engineered deep AMG rumble and instead sounds really raspy and raw (not in a good way IMO). Not to mention the smell, I had catless DP's on my B5 S4 and it stunk! Besides, the gains you get going catless on the M177 isn't worth the trade-off in sound. If people were picking up 35-40 HP to the wheels, that would be a different story... but I don't think 20-30 HP to the crank is worth de-catting.
I think ASR + the secondary cat delete would be the best sounding setup for this car. Personally, I'm leaving the cats alone and will just be installing the ASR.
I think ASR + the secondary cat delete would be the best sounding setup for this car. Personally, I'm leaving the cats alone and will just be installing the ASR.
04-19-2018, 12:48 PM
#127
MBWorld Fanatic!
No problem! I'm going to order one of these very soon, I think it's exactly what this car needs - more bass and low end rumble! I always find myself giving the car some extra throttle for a stop to get the valves to open more. And if you're very observant, you'll notice that when stopped, the more pressure you put on the brakes the quieter the car idles. Easiest way to hear this is when using the "hold" function by pressing the brake hard quickly at a stop. It will shut the valves instantly and idle quietly even with the OEM exhaust button on. This is obviously something AMG programmed for noise regulation and pedestrian comfort.
It's awesome to see the updated ASR module is literally one plug intercepted in the trunk (as opposed to two plugs on the actual exhaust flaps), so the install will be super easy... around 5-10 minutes.
I really don't like the way the M177 sounds with catless downpipes, you lose that nice engineered deep AMG rumble and instead sounds really raspy and raw (not in a good way IMO). Not to mention the smell, I had catless DP's on my B5 S4 and it stunk! Besides, the gains you get going catless on the M177 isn't worth the trade-off in sound. If people were picking up 35-40 HP to the wheels, that would be a different story... but I don't think 20-30 HP to the crank is worth de-catting.
I think ASR + the secondary cat delete would be the best sounding setup for this car. Personally, I'm leaving the cats alone and will just be installing the ASR.
It's awesome to see the updated ASR module is literally one plug intercepted in the trunk (as opposed to two plugs on the actual exhaust flaps), so the install will be super easy... around 5-10 minutes.
I really don't like the way the M177 sounds with catless downpipes, you lose that nice engineered deep AMG rumble and instead sounds really raspy and raw (not in a good way IMO). Not to mention the smell, I had catless DP's on my B5 S4 and it stunk! Besides, the gains you get going catless on the M177 isn't worth the trade-off in sound. If people were picking up 35-40 HP to the wheels, that would be a different story... but I don't think 20-30 HP to the crank is worth de-catting.
I think ASR + the secondary cat delete would be the best sounding setup for this car. Personally, I'm leaving the cats alone and will just be installing the ASR.
Is that what we can expect with these AVC Modules and AMG PE?? This is the exact sound I want from my car...
ASR-Daniel -- if this is what your module can do, I will order NOW. =P
From what it looks like, the only difference between the CETE product and ASR is that CETE requires you to tap into the CAN-BUS wires to let you control the module with the OEM Exhaust button, and the ASR module uses a key fob to control the module so that tapping into the Can-BUS wires isn't necessary (very nice).
Last edited by skim7x; 04-19-2018 at 12:58 PM.
04-19-2018, 01:20 PM
#129
Senior Member
Yeah I'm interested in this, too... check out this vid:
https://www.youtube.com/watch?v=X1MhNw3feps
https://www.youtube.com/watch?v=hZWxJL_nADI
Is that what we can expect with these AVC Modules and AMG PE?? This is the exact sound I want from my car...
ASR-Daniel -- if this is what your module can do, I will order NOW. =P
From what it looks like, the only difference between the CETE product and ASR is that CETE requires you to tap into the CAN-BUS wires to let you control the module with the OEM Exhaust button, and the ASR module uses a key fob to control the module so that tapping into the Can-BUS wires isn't necessary (very nice).
https://www.youtube.com/watch?v=X1MhNw3feps
https://www.youtube.com/watch?v=hZWxJL_nADI
Is that what we can expect with these AVC Modules and AMG PE?? This is the exact sound I want from my car...
ASR-Daniel -- if this is what your module can do, I will order NOW. =P
From what it looks like, the only difference between the CETE product and ASR is that CETE requires you to tap into the CAN-BUS wires to let you control the module with the OEM Exhaust button, and the ASR module uses a key fob to control the module so that tapping into the Can-BUS wires isn't necessary (very nice).
04-19-2018, 01:44 PM
#130
Hello, yes the sound in the second video (Black C63) is what you can expect in "Sport mode" with our module 
At the blue one iam not shure if there is only the original PE or something modifyed..
Flaps are open all the time and in every driving situation.
regards, Daniel
At the blue one iam not shure if there is only the original PE or something modifyed..
Flaps are open all the time and in every driving situation.
regards, Daniel
Hi Daniel, we have atleast 10 people interested in the ASR valve controller. Can you sort a group buy for us please?
04-19-2018, 02:08 PM
#132
MBWorld Fanatic!
04-19-2018, 02:14 PM
#133
Member
Hello, yes the sound in the second video (Black C63) is what you can expect in "Sport mode" with our module
At the blue one iam not shure if there is only the original PE or something modifyed..
Flaps are open all the time and in every driving situation.
regards, Daniel
At the blue one iam not shure if there is only the original PE or something modifyed..
Flaps are open all the time and in every driving situation.
regards, Daniel
04-19-2018, 02:24 PM
#134
MBWorld Fanatic!
04-19-2018, 03:28 PM
#135
MBWorld Fanatic!
Join Date: Nov 2016
Location: Toronto, ON
Posts: 1,527
Received 284 Likes
on
194 Posts
2021 Mercedes C63s AMG Coupe
I have a C43 so it is not a fair comparison. Cold Start is out of this world different and louder, burbles and cracks are much louder as well. Top end volume is unchanged. Low end volume is much much better. I am also getting a nasty snarl on high rpm liftoff.
04-19-2018, 03:59 PM
#136
MBWorld Fanatic!
This is a pretty good video that shows how the OEM AMG Performance Exhaust is programmed to dynamically open and adjusts the flaps based on RPM/engine load. At idle with the exhaust on, the valve is only about 50% open. It only opens to 100% for a brief second when revving hard. It acts similar when you're driving and under load, so forcing the valves to be 100% open should make a big difference even in part throttle.
By the way, whatever exhaust work is done to that Blue C63S Estate in addition to the CETE module sounds absolutely amazing. I haven't heard a better sounding setup on the M177 than that, very very similar to the GTR's stock exhaust.
By the way, whatever exhaust work is done to that Blue C63S Estate in addition to the CETE module sounds absolutely amazing. I haven't heard a better sounding setup on the M177 than that, very very similar to the GTR's stock exhaust.
Last edited by AlexZTuned; 04-19-2018 at 04:05 PM.
The following users liked this post:
Cyberzolot (04-22-2018)
04-19-2018, 04:11 PM
#137
MBWorld Fanatic!
Edit: Actually based on the subject title I'm guessing it's exhaust work from "YIDO"... so no telling what sort of exhaust work was done.
Last edited by skim7x; 04-19-2018 at 04:40 PM.
The following users liked this post:
ASR-Daniel (04-20-2018)
04-19-2018, 06:09 PM
#139
Super Member
So after thinking about this for a few.....when I installed AWE switchpath exhaust, the valves when unplugged appear to be open 100%.
So.........couldn't we just unplug the valves and insert a few simulators (to keep ECU happy) and have the valves open 100% all times?
So.........couldn't we just unplug the valves and insert a few simulators (to keep ECU happy) and have the valves open 100% all times?
The following users liked this post:
Passat774 (04-19-2018)
04-19-2018, 08:40 PM
#141
MBWorld Fanatic!
So after thinking about this for a few.....when I installed AWE switchpath exhaust, the valves when unplugged appear to be open 100%.
So.........couldn't we just unplug the valves and insert a few simulators (to keep ECU happy) and have the valves open 100% all times?
So.........couldn't we just unplug the valves and insert a few simulators (to keep ECU happy) and have the valves open 100% all times?
The following users liked this post:
Schulminator (04-20-2018)
04-19-2018, 08:46 PM
#142
Junior Member
So after thinking about this for a few.....when I installed AWE switchpath exhaust, the valves when unplugged appear to be open 100%.
So.........couldn't we just unplug the valves and insert a few simulators (to keep ECU happy) and have the valves open 100% all times?
So.........couldn't we just unplug the valves and insert a few simulators (to keep ECU happy) and have the valves open 100% all times?
The following users liked this post:
Schulminator (04-20-2018)
The following users liked this post:
Schulminator (04-20-2018)
04-19-2018, 09:14 PM
#145
MBWorld Fanatic!
Now, it definitely works and there are no visible errors on the dash. That said, I feel like there is loss of power, especially at the high end of 2nd gear... it might just be in my head though... try it out and let me know what you guys feel... It literally takes 5 minutes to do.
Last edited by skim7x; 04-19-2018 at 09:16 PM.
The following users liked this post:
NJ 1161 (10-14-2018)
04-19-2018, 09:34 PM
#146
Junior Member
I did the same thing but unplugged the individual mufflers under the car. It certainly works, at low speed it's much louder...
Does seem like something has changed at higher speeds and when letting off the gas..
Drove in comfort race, switched to Sport + which turned the flaps button red on the center console. No CEL but only went for a short ride..
Skim7X you just saved me $400!!! I want to repay you the favor some how!!
Does seem like something has changed at higher speeds and when letting off the gas..
Drove in comfort race, switched to Sport + which turned the flaps button red on the center console. No CEL but only went for a short ride..
Skim7X you just saved me $400!!! I want to repay you the favor some how!!
04-19-2018, 09:35 PM
#147
MBWorld Fanatic!
Guys you can't just unplug the exhaust valves (at the motor or in the trunk) or you will go into LIMP mode and it will kill your power/boost!! Do not do this unless you have simulators and the car is asleep or the battery is unplugged so it doesn't throw a code. You will need to clear the codes to get your car out of limp mode, and I'm not totally sure if you can do it with a regular OTS OBD-II reader.
I actually have a set of the AWE simulators in case I ever wanted to drop the OEM catback for the drag strip. I paid around $60 shipped for them last year. I didn't realize the valves opened up 100% when the car was off, I just checked for myself and confirmed they're wide open.
I will try installing the AWE valve simulators tomorrow and see if it keeps the valves open without any issues since I already have a set laying around. I'd still like the ability to revert back to the OEM controlled exhaust, but in reality I drive around with the exhaust on 99% of the time anyway... so this may be a cheap, temporary way to get the same effect as the ASR!
I actually have a set of the AWE simulators in case I ever wanted to drop the OEM catback for the drag strip. I paid around $60 shipped for them last year. I didn't realize the valves opened up 100% when the car was off, I just checked for myself and confirmed they're wide open.
I will try installing the AWE valve simulators tomorrow and see if it keeps the valves open without any issues since I already have a set laying around. I'd still like the ability to revert back to the OEM controlled exhaust, but in reality I drive around with the exhaust on 99% of the time anyway... so this may be a cheap, temporary way to get the same effect as the ASR!
The following users liked this post:
Schulminator (04-20-2018)
04-19-2018, 09:53 PM
#148
MBWorld Fanatic!
Hmm. Can't say the car went into full Limp mode, but I did feel loss of power. Weird because it's not like the valves anything to do with performance... don't see why they would throw a code -- they sure didn't on my previous bimmer.
@Passat774, did you notice any power changes with just unplugging each individual exhaust flap, as opposed to unplugging the controller?
@Passat774, did you notice any power changes with just unplugging each individual exhaust flap, as opposed to unplugging the controller?
04-19-2018, 09:58 PM
#149
Senior Member
Guys you can't just unplug the exhaust valves (at the motor or in the trunk) or you will go into LIMP mode and it will kill your power/boost!! Do not do this unless you have simulators and the car is asleep or the battery is unplugged so it doesn't throw a code. You will need to clear the codes to get your car out of limp mode, and I'm not totally sure if you can do it with a regular OTS OBD-II reader.
I actually have a set of the AWE simulators in case I ever wanted to drop the OEM catback for the drag strip. I paid around $60 shipped for them last year. I didn't realize the valves opened up 100% when the car was off, I just checked for myself and confirmed they're wide open.
I will try installing the AWE valve simulators tomorrow and see if it keeps the valves open without any issues since I already have a set laying around. I'd still like the ability to revert back to the OEM controlled exhaust, but in reality I drive around with the exhaust on 99% of the time anyway... so this may be a cheap, temporary way to get the same effect as the ASR!
I actually have a set of the AWE simulators in case I ever wanted to drop the OEM catback for the drag strip. I paid around $60 shipped for them last year. I didn't realize the valves opened up 100% when the car was off, I just checked for myself and confirmed they're wide open.
I will try installing the AWE valve simulators tomorrow and see if it keeps the valves open without any issues since I already have a set laying around. I'd still like the ability to revert back to the OEM controlled exhaust, but in reality I drive around with the exhaust on 99% of the time anyway... so this may be a cheap, temporary way to get the same effect as the ASR!
04-19-2018, 10:00 PM
#150
Junior Member
Hard to tell on such a quick test drive to see if it worked... Didn't feel slower idk...
The valves were certainly still opened the entire time
The valves were certainly still opened the entire time
