$50 C63S Exhaust Valve Mod: Force Valves Open 100% with AWE Simulators
Senior Member
Joined: Jun 2006
Posts: 303
Likes: 166
From: VA
c63 BS; lc500; F-pace SVR; Jaguar P8, c63 p31
Just to be sure I didn’t mess it up with the first installation, I removed and reinstalled the modules again (twice) over the past 24 hrs. I even tried with two different sets of the modules (I ordered 2 pairs by accident). I locked the car in my garage, drove the two keys in my other car to about 2 football fields away (long walk back), waited 30 minutes and did the installs and found this with both instances: With modules on, at full throttle, horse power will not go past 400. Torque will go to the 500 mark but not hp. Car feels slower.When I took off the modules and plug back the original set ups, power go all the way to 500hp at full throttle. I wonder if it has to do with later build model and their software set ups to make this not compatible. My car is a 2017 coupe. I’m really torn now since I love how the exhaust sounds around town with the modules installed but at the cost of about 20-30% of hp. I guess I’ll have to choose between sounding fast and being fast.
Junior Member
Joined: Apr 2018
Posts: 50
Likes: 1
2018 C63 AMG
Just to be sure I didn’t mess it up with the first installation, I removed and reinstalled the modules again (twice) over the past 24 hrs. I even tried with two different sets of the modules (I ordered 2 pairs by accident). I locked the car in my garage, drove the two keys in my other car to about 2 football fields away (long walk back), waited 30 minutes and did the installs and found this with both instances: With modules on, at full throttle, horse power will not go past 400. Torque will go to the 500 mark but not hp. Car feels slower.When I took off the modules and plug back the original set ups, power go all the way to 500hp at full throttle. I wonder if it has to do with later build model and their software set ups to make this not compatible. My car is a 2017 coupe. I’m really torn now since I love how the exhaust sounds around town with the modules installed but at the cost of about 20-30% of hp. I guess I’ll have to choose between sounding fast and being fast.
Junior Member
Joined: Apr 2018
Posts: 50
Likes: 1
2018 C63 AMG
Senior Member
Joined: Jun 2006
Posts: 303
Likes: 166
From: VA
c63 BS; lc500; F-pace SVR; Jaguar P8, c63 p31
I can confirm that after installing my ASR module that there's no issue with power loss. I, along with a few other 17' cars owners, have had issues with not getting 100% power when using the simulators.
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Junior Member
Joined: Jan 2018
Posts: 19
Likes: 3
2015 BMW M4/1967 Ford Bronco
I bought these simulators and planning on installing tomorrow. They cost $60 with shipping and the install should take about five minutes, so I figured what's the harm in trying. Will report back if there's any loss in power..
Super Member
Joined: Jun 2015
Posts: 927
Likes: 33
From: San jose CA.
w205 c400 c63s
let us know bro. Btw, what year Model is your c63s
Junior Member
Joined: Nov 2017
Posts: 68
Likes: 10
2016 C63 AMG Wagon
Do these simulators make the PE just like the std exhaust, or does the PE have differences other than the valves? I have always been curious about the differences between the PE and the std exhaust.
Junior Member
Joined: Jan 2018
Posts: 19
Likes: 3
2015 BMW M4/1967 Ford Bronco
Installed a little while ago as per the directions. The sound is a definite improvement but unfortunately I'm getting power loss too. Can feel it in the butt dyno and the highest I could get the gauges to pin was a little over 300 h.p. and 400 ft./lbs.
FYI my car is an '18 S that was just built a few months ago.
FYI my car is an '18 S that was just built a few months ago.
Junior Member
Joined: Jan 2016
Posts: 18
Likes: 2
From: Gold Coast Australia
AMG GLC 63s
Did you guys notice any loss in power or is it just me? I just installed these and while they do work, the valves are open and the car sounds significantly louder, when I punch it, it doesn't feel as strong as it did before. I'm tuned and I'm almost certain that I've lost power. With the valves open all the time, is it possible that there could be a loss in backpressure resulting in power loss? I'm going to uninstall them in a bit and see if there is any difference..
I just picked up a GLC 63 and while its not the same as the C63 the exhaust is pretty much similar. I used an ASR RX2 controller for the rear valves and it works without any issues. The guys at ASR told me that the newer C63s are not suitable for using the 3 pin decommissioning plugs and for C63 they are using the RX2 controller.
The other thing I will try and report back if of interest is closing the valve with a decommissioning plug on the H Pipe. Going back to early days I know they were really pre X pipe and were mainly used as a balance pipe to quieten down the exhaust and remove that crackle sound, so it makes sense the exhaust would be louder and more agressive with the H pipe closed off. There is still a real difference in sound going from drive in S+ to Park
I found this thread when searching for info on the H pipe and valve setup and seem to remember Chris Harris doing a review of the C63 and going over the exhaust.
Senior Member
Joined: Oct 2006
Posts: 258
Likes: 72
From: Orange County
2019 Audi SQ5, 2011 Toyota Tacoma TRD 4wd, 2016 Ford Focus se Hatchback
Hi Guys
I just picked up a GLC 63 and while its not the same as the C63 the exhaust is pretty much similar. I used an ASR RX2 controller for the rear valves and it works without any issues. The guys at ASR told me that the newer C63s are not suitable for using the 3 pin decommissioning plugs and for C63 they are using the RX2 controller.
The other thing I will try and report back if of interest is closing the valve with a decommissioning plug on the H Pipe. Going back to early days I know they were really pre X pipe and were mainly used as a balance pipe to quieten down the exhaust and remove that crackle sound, so it makes sense the exhaust would be louder and more agressive with the H pipe closed off. There is still a real difference in sound going from drive in S+ to Park
I found this thread when searching for info on the H pipe and valve setup and seem to remember Chris Harris doing a review of the C63 and going over the exhaust.
I just picked up a GLC 63 and while its not the same as the C63 the exhaust is pretty much similar. I used an ASR RX2 controller for the rear valves and it works without any issues. The guys at ASR told me that the newer C63s are not suitable for using the 3 pin decommissioning plugs and for C63 they are using the RX2 controller.
The other thing I will try and report back if of interest is closing the valve with a decommissioning plug on the H Pipe. Going back to early days I know they were really pre X pipe and were mainly used as a balance pipe to quieten down the exhaust and remove that crackle sound, so it makes sense the exhaust would be louder and more agressive with the H pipe closed off. There is still a real difference in sound going from drive in S+ to Park
I found this thread when searching for info on the H pipe and valve setup and seem to remember Chris Harris doing a review of the C63 and going over the exhaust.
What is a decommissioning plug? I put the awe simulator on my H pipe and it 100% open. I noticed volume dropped but it eliminated a rattle I was having in the valve when moving to open at 2500-3000 RPMs. Interested.
Junior Member
Joined: Jan 2016
Posts: 18
Likes: 2
From: Gold Coast Australia
AMG GLC 63s
I'll try putting the car on a lift and will video the changes during gear selection and raised RPM
MBWorld Fanatic!
Joined: Jul 2011
Posts: 1,146
Likes: 206
2019 AMG GT R
Decommissioning plug is the ASR name for valve simulator. It would be interesting if anyone knows the functions used in the H pipe, eg partial closure. There seems to be a dramatic volume drop when you move from drive to part in Sport+ and given the valves at the back are permanetly open I'm guessing it can only be the H pipe valve.
I'll try putting the car on a lift and will video the changes during gear selection and raised RPM
I'll try putting the car on a lift and will video the changes during gear selection and raised RPM
Newbie
Joined: Apr 2018
Posts: 13
Likes: 0
SL65
2019 c63s owner here. I tried installing the awe simulator. My first attempt of installation, rather than moving keys 20ft away, I removed their battery. I did not wait the 10minutes, but only maybe 5min. Installed the simulator and noticed the power drop. I unplugged the simulator and replugged it back to the valve motor, power is back to 500hp. I tried reinstalling the simulator a second time by driving the keys 2km away and waiting 30minutes, power drop again.
I got frustrated and attempted to remove the valve motors off while leaving in plugged in, in hopes the car can communicate with the valve while the valve is still physically open 100%. There are 3 8mm nuts holding the valve motor to the valve flap. That also resulted in power loss; im guessing the valve motor kept on rotating without feeling resistance of the valve stuck open/closed, thus throwing the soft code and reducing power. I’m waiting for office hours to call AWE to get a refund now.
Now I’m just tempted to drill out the flap of the valve.
Also on a similar note, I removed my mufflers, cut them open, and welded in straight pipes to connect the muffler inlet to the two outlet tips. OEM muffler is surprisely unrestricted. There is no fibreglass or sound deadening. It’s just a open hollow chamber with the plumbing tracts perforated.
That made the car sound louder but I’m surprised how quiet these turbo AMG are. My v8 Audi s5 and v10 m6 are IMMENSELY louder than this when ‘straight piped+cats’. I guess the next step to go louder is straight down pipes.
I got frustrated and attempted to remove the valve motors off while leaving in plugged in, in hopes the car can communicate with the valve while the valve is still physically open 100%. There are 3 8mm nuts holding the valve motor to the valve flap. That also resulted in power loss; im guessing the valve motor kept on rotating without feeling resistance of the valve stuck open/closed, thus throwing the soft code and reducing power. I’m waiting for office hours to call AWE to get a refund now.
Now I’m just tempted to drill out the flap of the valve.
Also on a similar note, I removed my mufflers, cut them open, and welded in straight pipes to connect the muffler inlet to the two outlet tips. OEM muffler is surprisely unrestricted. There is no fibreglass or sound deadening. It’s just a open hollow chamber with the plumbing tracts perforated.
That made the car sound louder but I’m surprised how quiet these turbo AMG are. My v8 Audi s5 and v10 m6 are IMMENSELY louder than this when ‘straight piped+cats’. I guess the next step to go louder is straight down pipes.
MBWorld Fanatic!
Joined: Jul 2011
Posts: 1,146
Likes: 206
2019 AMG GT R
2019 c63s owner here. I tried installing the awe simulator. My first attempt of installation, rather than moving keys 20ft away, I removed their battery. I did not wait the 10minutes, but only maybe 5min. Installed the simulator and noticed the power drop. I unplugged the simulator and replugged it back to the valve motor, power is back to 500hp. I tried reinstalling the simulator a second time by driving the keys 2km away and waiting 30minutes, power drop again.
I got frustrated and attempted to remove the valve motors off while leaving in plugged in, in hopes the car can communicate with the valve while the valve is still physically open 100%. That also resulted in power loss; im guessing the valve motor kept on rotating without feeling resistance of the valve stuck open/closed, thus throwing the soft code and reducing power. I’m waiting for office hours to call AWE to get a refund now.
Now I’m just tempted to drill out the flap of the valve.
Also on a similar note, I removed my mufflers, cut them open, and welded in straight pipes to connect the muffler inlet to the two outlet tips. OEM muffler is surprisely unrestricted. There is no fibreglass or sound deadening. It’s just a open hollow chamber with the plumbing tracts perforated.
That made the car sound louder but I’m surprised how quiet these turbo AMG are. My v8 Audi s5 and v10 m6 are IMMENSELY louder than this when ‘straight piped+cats’. I guess the next step to go louder is straight down pipes.
I got frustrated and attempted to remove the valve motors off while leaving in plugged in, in hopes the car can communicate with the valve while the valve is still physically open 100%. That also resulted in power loss; im guessing the valve motor kept on rotating without feeling resistance of the valve stuck open/closed, thus throwing the soft code and reducing power. I’m waiting for office hours to call AWE to get a refund now.
Now I’m just tempted to drill out the flap of the valve.
Also on a similar note, I removed my mufflers, cut them open, and welded in straight pipes to connect the muffler inlet to the two outlet tips. OEM muffler is surprisely unrestricted. There is no fibreglass or sound deadening. It’s just a open hollow chamber with the plumbing tracts perforated.
That made the car sound louder but I’m surprised how quiet these turbo AMG are. My v8 Audi s5 and v10 m6 are IMMENSELY louder than this when ‘straight piped+cats’. I guess the next step to go louder is straight down pipes.
Newbie
Joined: Apr 2018
Posts: 13
Likes: 0
SL65
I think it’s the nature of turbo cars. Or in this case, a relatively small snail to engine size. Look at those turbos in the hood. They are quite tiny. Back in the days when I was into building Honda with B18 turbos, I’d be throwing in turbos that are much larger, and squeezing 300whp from 1.8L. Comparatively, these turbos are fundamentally making 250hp out of 2.0 displacement, each side of the bank, kinda sorta can logic that way.
MBWorld Fanatic!
Joined: Jul 2011
Posts: 1,146
Likes: 206
2019 AMG GT R
You can always do a secondary cat delete to make your car sound more mean. Not sure why no 2019 owner has done this yet.
Newbie
Joined: Apr 2018
Posts: 13
Likes: 0
SL65
funny you say that because yes the car is fast but for the same price i couldve bought a faster car. only reason i bought this was because of the sound and yes its a smaller displacement but what i was trying to say is that from reading ppls comments on the forum it looks like the new facelift c63 is to blame for not being 'loud enough'. I have no complaints in the sound department from my 2017 c63s and im sure owners of pre face lift models will agree that no bmw, audi etc come even close to sounding as good.
You can always do a secondary cat delete to make your car sound more mean. Not sure why no 2019 owner has done this yet.
You can always do a secondary cat delete to make your car sound more mean. Not sure why no 2019 owner has done this yet.
who wants to trade their pre2017 c63 for my 2019 c63s with 6000km. Located in Vancouver Canada. :P
Junior Member
Joined: Jan 2016
Posts: 18
Likes: 2
From: Gold Coast Australia
AMG GLC 63s
2019 c63s owner here. I tried installing the awe simulator. My first attempt of installation, rather than moving keys 20ft away, I removed their battery. I did not wait the 10minutes, but only maybe 5min. Installed the simulator and noticed the power drop. I unplugged the simulator and replugged it back to the valve motor, power is back to 500hp. I tried reinstalling the simulator a second time by driving the keys 2km away and waiting 30minutes, power drop again.
I got frustrated and attempted to remove the valve motors off while leaving in plugged in, in hopes the car can communicate with the valve while the valve is still physically open 100%. There are 3 8mm nuts holding the valve motor to the valve flap. That also resulted in power loss; im guessing the valve motor kept on rotating without feeling resistance of the valve stuck open/closed, thus throwing the soft code and reducing power. I’m waiting for office hours to call AWE to get a refund now.
Now I’m just tempted to drill out the flap of the valve.
Also on a similar note, I removed my mufflers, cut them open, and welded in straight pipes to connect the muffler inlet to the two outlet tips. OEM muffler is surprisely unrestricted. There is no fibreglass or sound deadening. It’s just a open hollow chamber with the plumbing tracts perforated.
That made the car sound louder but I’m surprised how quiet these turbo AMG are. My v8 Audi s5 and v10 m6 are IMMENSELY louder than this when ‘straight piped+cats’. I guess the next step to go louder is straight down pipes.
I got frustrated and attempted to remove the valve motors off while leaving in plugged in, in hopes the car can communicate with the valve while the valve is still physically open 100%. There are 3 8mm nuts holding the valve motor to the valve flap. That also resulted in power loss; im guessing the valve motor kept on rotating without feeling resistance of the valve stuck open/closed, thus throwing the soft code and reducing power. I’m waiting for office hours to call AWE to get a refund now.
Now I’m just tempted to drill out the flap of the valve.
Also on a similar note, I removed my mufflers, cut them open, and welded in straight pipes to connect the muffler inlet to the two outlet tips. OEM muffler is surprisely unrestricted. There is no fibreglass or sound deadening. It’s just a open hollow chamber with the plumbing tracts perforated.
That made the car sound louder but I’m surprised how quiet these turbo AMG are. My v8 Audi s5 and v10 m6 are IMMENSELY louder than this when ‘straight piped+cats’. I guess the next step to go louder is straight down pipes.
