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Stealth Cold Start

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Old Dec 14, 2018 | 01:45 PM
  #41  
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Originally Posted by emorale3


It getting louder when you hit the gas is true, i know this. I am speaking of when you have the exhaust in trackmode it doesnt stay loud the whole time, it goes to quiet mode if your just cruising on the highway, that is why I got the m2w switch. To keep it loud when i wanted and vice versa
Yeah I haven't experienced that. It's still loud for me when I'm cruising in track mode. I have, on occasion, turned it to touring mode when I'm on a longer drive with the cruise set so it will not be so loud. And I don't mean it just gets louder because of exhaust output at WOT, I mean the valves actually open. I can hear the difference. Maybe it's a difference between a manual and auto (if you have an auto). Ionno
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Old Dec 14, 2018 | 01:49 PM
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Originally Posted by Toddiesel
Yeah I haven't experienced that. It's still loud for me when I'm cruising in track mode. I have, on occasion, turned it to touring mode when I'm on a longer drive with the cruise set so it will not be so loud. And I don't mean it just gets louder because of exhaust output at WOT, I mean the valves actually open. I can hear the difference. Maybe it's a difference between a manual and auto (if you have an auto). Ionno
Yea i guess so, i have an auto
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Old Dec 14, 2018 | 02:05 PM
  #43  
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Originally Posted by emorale3
It getting louder when you hit the gas is true, i know this. I am speaking of when you have the exhaust in trackmode it doesnt stay loud the whole time, it goes to quiet mode if your just cruising on the highway, that is why I got the m2w switch. To keep it loud when i wanted and vice versa
This isn't what the OP was asking about, but If you want it loud all the time, you can simply pull the fuse that powers the closing of the dampers.

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Old Dec 14, 2018 | 02:06 PM
  #44  
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Originally Posted by Toddiesel
This is just dead wrong. I have my exhaust linked to my drive mode. I like it in track mode, but usually drive around in sport mode for the following reason: If I turn my car off in track mode, when I start it back up, it's in touring mode and since my exhaust is linked to my driving mode (default behavior, no need to change anything - OP), it starts in stealth mode and i don't get that awesome growl when it starts. If you start the car in touring, weather, or eco, it's going to start in quiet/stealth mode. There's no starting loud and then going quiet.
Absolutely not!! Maybe 15-16 M7 are different, but regardless of the mode, its start open then shut off right after!! 100% sure!!
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Old Dec 14, 2018 | 03:30 PM
  #45  
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Put the car in tour or economy mode before you shut it off. Or if you forget, get in the car and put the car in accessory mode (hold start button down) and the dash will light up and you can switch to tour or economy mode that way then start the car normally from there.

Tour mode on start up sounds like a Honda V-6.
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Old Dec 14, 2018 | 04:23 PM
  #46  
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Originally Posted by Oneslackr
That's not true on my 2018 M7 Z06. I just went out & verified this but I can only speak to how a 2018 Z06 operates. Though I would imagine they would all be the same. I should add that I when I initially set up the car I left my exhaust sound setting on the default option in the menu (i.e. exhaust tied to driving mode selector).
  • I shut my car off in 'sport' mode the last time I drove it = Valves were open when I went out a few minutes ago (visually verified)
  • I held the start button for 5 seconds to put it into 'service mode' (i.e. not accessory mode). This allowed me to change the driving mode without starting the car.
  • I rotated the mode selection **** from 'sport' over to 'tour' mode = I heard the valves close & then I got out & visually confirmed the exhaust tip valves were closed.
  • I then started the car = It started quietly & I then got back out & verified that the valves were still closed (the car is currently idling in the driveway as I write this)
Originally Posted by timmyZ06
Absolutely not!! Maybe 15-16 M7 are different, but regardless of the mode, its start open then shut off right after!! 100% sure!!
Above is my response to you from 2 days ago (post # 22) when you made the same claim. Those are the steps I went through to verify that my car does start with the valves closed in touring mode (I verified it with my own eyes). My car starts quietly & remains idling quietly in touring mode. If I turn the **** to sport it starts loudly & idles loudly. I don't see any reason why GM would change the way things work on the cars depending on the year.

1. If your car doesn't work this way then I think there is something odd with your car.
or
2. Maybe you don't have your exhaust sound tied to the driving mode (i.e. the default setting in the menu).

Last edited by Oneslackr; Dec 14, 2018 at 04:24 PM.
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Old Dec 14, 2018 | 04:50 PM
  #47  
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....

Last edited by ronsc1985; Dec 14, 2018 at 04:53 PM.
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Old Dec 14, 2018 | 04:52 PM
  #48  
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Originally Posted by Oneslackr
Above is my response to you from 2 days ago (post # 22) when you made the same claim. Those are the steps I went through to verify that my car does start with the valves closed in touring mode (I verified it with my own eyes). My car starts quietly & remains idling quietly in touring mode. If I turn the **** to sport it starts loudly & idles loudly. I don't see any reason why GM would change the way things work on the cars depending on the year.
1. If your car doesn't work this way then I think there is something odd with your car.
or
2. Maybe you don't have your exhaust sound tied to the driving mode (i.e. the default setting in the menu).
You are correct. My 2017 starts in whatever mode you left it in. Since around town I'm most always in touring mode the car starts quietly. If I stop in sport, track etc it starts loud.
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Old Dec 14, 2018 | 07:24 PM
  #49  
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You are all way nicer than I am. I'd make damn sure it always started in Track mode if I had a neighbor that cared enough to complain over a stock car with stock exhaust during 'normal' daylight hours.
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Old Dec 14, 2018 | 07:41 PM
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Originally Posted by RichieRichZ06
You are all way nicer than I am. I'd make damn sure it always started in Track mode if I had a neighbor that cared enough to complain over a stock car with stock exhaust during 'normal' daylight hours.
LOL
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Old Dec 14, 2018 | 08:39 PM
  #51  
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Originally Posted by RichieRichZ06
You are all way nicer than I am. I'd make damn sure it always started in Track mode if I had a neighbor that cared enough to complain over a stock car with stock exhaust during 'normal' daylight hours.
Yeah but the OP's HOA sounds like a royal pain in the ***. It seems in his neighborhood the HOA will fine you if they don't like the way you parted your hair in the morning. It's absurd.
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Old Dec 14, 2018 | 09:00 PM
  #52  
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Originally Posted by RichieRichZ06
You are all way nicer than I am. I'd make damn sure it always started in Track mode if I had a neighbor that cared enough to complain over a stock car with stock exhaust during 'normal' daylight hours.
Yeah if he's gonna get a fine, it's not about being nice. It's about avoiding fines. I loathe HOAs (despite being on the board of mine) for these kinds of reasons, but this thread isn't about knocking them or trying to get around it. We're trying to advise on how he can get a Z06 and keep his exhaust quiet to comply with his HOA's CC&R
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Old Dec 15, 2018 | 05:08 PM
  #53  
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Originally Posted by Warp Factor
This isn't what the OP was asking about, but If you want it loud all the time, you can simply pull the fuse that powers the closing of the dampers.
When pulling the fuse you can’t close the valves. The reason for M2W. Love mine and worth the $80.
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Old Dec 16, 2018 | 06:02 AM
  #54  
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I have headers and no cats on mine with a stroked 416. I park it in touring mode and it’s fine when I start it in the morning. Driving it around in touring even with my setup you’d hardly notice just putt’n through the neighborhood.

Last edited by h3mpking; Dec 16, 2018 at 01:01 PM.
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Old Dec 16, 2018 | 09:05 AM
  #55  
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I live in a townhouse complex and I start mine on sport mide, basically cause I forget 99.9% of the time, but most of my neighbors are in the military and haven’t heard a complaint yet.

In on this video I switched to stealth mode around the 1:05 min mark and back to sport 7-10 secs later.

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Old Dec 18, 2018 | 02:09 PM
  #56  
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Originally Posted by 01REDSS
I live in a townhouse complex and I start mine on sport mide, basically cause I forget 99.9% of the time, but most of my neighbors are in the military and haven’t heard a complaint yet.

In on this video I switched to stealth mode around the 1:05 min mark and back to sport 7-10 secs later.

https://youtu.be/09r7MX_8MB8
I've certainly seen that the car can go to stealth mode, Im just wondering if it will start with the valves open and quickly shut to closed or will 100% stay closed even from cranking. Im sure many other neighborhoods may not complain about noise but I assure you all that mine will. The way my alley is designed, my garage door is maybe 25 yards from the side of someone's house. With all the other houses around me being close and the neighbors being D-bags, Im 100% sure that I will **** people off even during "normal hours" or if the vehicle is stock.
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Old Dec 18, 2018 | 11:52 PM
  #57  
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Originally Posted by lknox21
I've certainly seen that the car can go to stealth mode, Im just wondering if it will start with the valves open and quickly shut to closed or will 100% stay closed even from cranking. Im sure many other neighborhoods may not complain about noise but I assure you all that mine will. The way my alley is designed, my garage door is maybe 25 yards from the side of someone's house. With all the other houses around me being close and the neighbors being D-bags, Im 100% sure that I will **** people off even during "normal hours" or if the vehicle is stock.
I don't think there is anything more that can be said about this. A number of posters, including myself, have posted repeatedly above that the car starts quietly in stealth or tour mode. The difference in the starting volume between stealth/touring & sport, for example, is very noticeable (there is no mistaking the different volume levels). We have even explained how you can easily switch the car into a quiet mode, prior to starting the car, if you accidentally left it on one of the louder settings when you shut the car off the last time/night before (all without needing to waste money on extra gadgets etc..). But it's almost as if you choose to ignore or not believe all of us who have assured you this is the case. Perhaps you should just forget about a Corvette & buy a Prius so you can be assured that there won't be any exhaust sound which will annoy your wonderful neighbors.

What's that old saying - You can lead a horse to water but you can't make him drink. Good luck.
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Old Dec 19, 2018 | 07:59 AM
  #58  
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Originally Posted by lknox21
Im sure many other neighborhoods may not complain about noise but I assure you all that mine will. The way my alley is designed, my garage door is maybe 25 yards from the side of someone's house. With all the other houses around me being close and the neighbors being D-bags, Im 100% sure that I will **** people off even during "normal hours" or if the vehicle is stock.
I always start my car at home in the quiet mode, not because I think my neighbors will complain, but because I actually enjoy being courteous to them. Don't usually mow my lawn before 9 am either.
As the person above affirmed, it's easy as can be without modifying the car in any way.

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Old Dec 19, 2018 | 02:06 PM
  #59  
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Originally Posted by Warp Factor
I always start my car at home in the quiet mode, not because I think my neighbors will complain, but because I actually enjoy being courteous to them. Don't usually mow my lawn before 9 am either.
As the person above affirmed, it's easy as can be without modifying the car in any way.
What's this "courteous" you speak of? Must be a long lost value in today's society. Thanks for trying to keep it alive.

Last edited by mdb917; Dec 19, 2018 at 02:09 PM.
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Old Dec 19, 2018 | 03:35 PM
  #60  
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Originally Posted by Oneslackr
I don't think there is anything more that can be said about this. A number of posters, including myself, have posted repeatedly above that the car starts quietly in stealth or tour mode. The difference in the starting volume between stealth/touring & sport, for example, is very noticeable (there is no mistaking the different volume levels). We have even explained how you can easily switch the car into a quiet mode, prior to starting the car, if you accidentally left it on one of the louder settings when you shut the car off the last time/night before (all without needing to waste money on extra gadgets etc..). But it's almost as if you choose to ignore or not believe all of us who have assured you this is the case. Perhaps you should just forget about a Corvette & buy a Prius so you can be assured that there won't be any exhaust sound which will annoy your wonderful neighbors.

What's that old saying - You can lead a horse to water but you can't make him drink. Good luck.
And i've also seen multiple posters say something in contradiction. No need to be sarcastic. I have read the proposals and I'll certainly check them out before I buy so chill.
My response was not to you and not about modules. It was about the need for effort to not annoy my neighbors.

Whats the old saying? This is an A and B conversation so C your way out.

Last edited by lknox21; Dec 19, 2018 at 03:38 PM.
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