In-Depth 992 Carrera Exhaust Series (Flat 6 Motorsports)
05-19-2023, 05:00 PM
#61
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Flat 6 Motorsports
Porsche Aftermarket Specialists
www.flat6motorsports.com
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Flat 6 Motorsports
Porsche Aftermarket Specialists
www.flat6motorsports.com
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mattchow (05-23-2023)
05-19-2023, 06:06 PM
#63
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See here:
Just a quick note, the majority of the systems we tested are with stock cats unless the system relied on its own set of cats that weren't compatible with the stock cats. We do have experience in different arrangements, including fully opened exhausts but due to the regulatory environment, we chose not to showcase those. In general terms, less restriction in the link pipe leads to more power, slightly louder exhaust tone and more turbo whistling noise.
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Bigoil (06-09-2023)
05-19-2023, 08:22 PM
#64
It looks like they were removing the stock cats in the installation portion
05-22-2023, 12:17 AM
#65
05-22-2023, 08:26 AM
#66
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We initially got footage at Daytona but the audio didn't come out well enough so the end of the video features the competition link pipes.
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mattchow (05-22-2023)
05-22-2023, 04:52 PM
#68
Okay, summarizing the CarGraphic controller with PSE: ON = valves always FULLY OPEN until turned off, regardless of PSE button on/off. With CarGraphic OFF = PSE works like factory, meaning valves off when PSE off, and valves open to factory parameters when PSE is ON. Correct?
Just have one question left: When you turn the vehicle off, does the controller remember the last setting, or reverts back to OFF upon start-up? Just curious.
To confirm, no way to program the CarGraphic so when you open the valves via PSE, they fully open (same as turning them on via HomeLink), correct? If that's correct, then the only way to accomplish that would be with the mentioned '0-stage M tune'... BUT you'd be violating the electronic seal on the ECU by doing that, so not an option for me. But I think the way it is might be the best of both worlds: You have full factory PSE functionality with it OFF, and you can turn it ON when desired. The only negative for me is I need 2 HomeLink buttons for 2 different garages, so would have to use a remote for something (probably the 2nd garage).
Finally, I have a question for you about the perceived 'drone' on exhaust systems tested. How much of that drone do you think might be due to the symposer(s)? It'd be great if you could plug (or just temporarily disconnect) your symposers when testing exhaust systems, but might be too late for some of the already reviewed ones. Many of us don't like intake noise, and prefer the mechanical music of the H6, along with exhaust-only sound, so end up disabling/plugging them (I'll do that since day 1 when I get mine). Curious how PSE sounds with CarGraphic ON vs PSE ON vs PSE OFF without symposers, especially while cruising. With CarGraphic controller, it might not be worth spending thousands in a slip-on IMO over PSE, since Porsche neutered it with their programming IMO. Thank you for your great videos and info. Take care.
Just have one question left: When you turn the vehicle off, does the controller remember the last setting, or reverts back to OFF upon start-up? Just curious.
To confirm, no way to program the CarGraphic so when you open the valves via PSE, they fully open (same as turning them on via HomeLink), correct? If that's correct, then the only way to accomplish that would be with the mentioned '0-stage M tune'... BUT you'd be violating the electronic seal on the ECU by doing that, so not an option for me. But I think the way it is might be the best of both worlds: You have full factory PSE functionality with it OFF, and you can turn it ON when desired. The only negative for me is I need 2 HomeLink buttons for 2 different garages, so would have to use a remote for something (probably the 2nd garage).
Finally, I have a question for you about the perceived 'drone' on exhaust systems tested. How much of that drone do you think might be due to the symposer(s)? It'd be great if you could plug (or just temporarily disconnect) your symposers when testing exhaust systems, but might be too late for some of the already reviewed ones. Many of us don't like intake noise, and prefer the mechanical music of the H6, along with exhaust-only sound, so end up disabling/plugging them (I'll do that since day 1 when I get mine). Curious how PSE sounds with CarGraphic ON vs PSE ON vs PSE OFF without symposers, especially while cruising. With CarGraphic controller, it might not be worth spending thousands in a slip-on IMO over PSE, since Porsche neutered it with their programming IMO. Thank you for your great videos and info. Take care.
Last edited by JCtx; 05-22-2023 at 04:55 PM.
05-22-2023, 06:25 PM
#69
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Okay, summarizing the CarGraphic controller with PSE: ON = valves always FULLY OPEN until turned off, regardless of PSE button on/off. With CarGraphic OFF = PSE works like factory, meaning valves off when PSE off, and valves open to factory parameters when PSE is ON. Correct?
Just have one question left: When you turn the vehicle off, does the controller remember the last setting, or reverts back to OFF upon start-up? Just curious.
To confirm, no way to program the CarGraphic so when you open the valves via PSE, they fully open (same as turning them on via HomeLink), correct? If that's correct, then the only way to accomplish that would be with the mentioned '0-stage M tune'... BUT you'd be violating the electronic seal on the ECU by doing that, so not an option for me. But I think the way it is might be the best of both worlds: You have full factory PSE functionality with it OFF, and you can turn it ON when desired. The only negative for me is I need 2 HomeLink buttons for 2 different garages, so would have to use a remote for something (probably the 2nd garage).
Finally, I have a question for you about the perceived 'drone' on exhaust systems tested. How much of that drone do you think might be due to the symposer(s)? It'd be great if you could plug (or just temporarily disconnect) your symposers when testing exhaust systems, but might be too late for some of the already reviewed ones. Many of us don't like intake noise, and prefer the mechanical music of the H6, along with exhaust-only sound, so end up disabling/plugging them (I'll do that since day 1 when I get mine). Curious how PSE sounds with CarGraphic ON vs PSE ON vs PSE OFF without symposers, especially while cruising. With CarGraphic controller, it might not be worth spending thousands in a slip-on IMO over PSE, since Porsche neutered it with their programming IMO. Thank you for your great videos and info. Take care.
Just have one question left: When you turn the vehicle off, does the controller remember the last setting, or reverts back to OFF upon start-up? Just curious.
To confirm, no way to program the CarGraphic so when you open the valves via PSE, they fully open (same as turning them on via HomeLink), correct? If that's correct, then the only way to accomplish that would be with the mentioned '0-stage M tune'... BUT you'd be violating the electronic seal on the ECU by doing that, so not an option for me. But I think the way it is might be the best of both worlds: You have full factory PSE functionality with it OFF, and you can turn it ON when desired. The only negative for me is I need 2 HomeLink buttons for 2 different garages, so would have to use a remote for something (probably the 2nd garage).
Finally, I have a question for you about the perceived 'drone' on exhaust systems tested. How much of that drone do you think might be due to the symposer(s)? It'd be great if you could plug (or just temporarily disconnect) your symposers when testing exhaust systems, but might be too late for some of the already reviewed ones. Many of us don't like intake noise, and prefer the mechanical music of the H6, along with exhaust-only sound, so end up disabling/plugging them (I'll do that since day 1 when I get mine). Curious how PSE sounds with CarGraphic ON vs PSE ON vs PSE OFF without symposers, especially while cruising. With CarGraphic controller, it might not be worth spending thousands in a slip-on IMO over PSE, since Porsche neutered it with their programming IMO. Thank you for your great videos and info. Take care.
I don't know with the sound symposer, we've never played with that. I don't find most of these systems to drone. The full fledge competition system from Soul has a little bit but still not offensive inside the car. Just a little volume outside if that's a concern.
05-23-2023, 12:36 PM
#70
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Can we get the new BBI exhaust worked into this list? 
https://bbiautosport.com/collections...de-exhaust-992
https://bbiautosport.com/collections...de-exhaust-992
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ara (05-23-2023)
05-24-2023, 09:10 AM
#71
While the Cargraphic controller is cheap comparably to a slip on/cats, it is not without a disadvantage(s). It doesn’t make the PSE louder overall, still the same exhaust. At WOT it is the same. At lower RPM ranges and idle, it will be get “louder” as the valves are forced open, but still quieter than at WOT 7,000 RPM. The downside is a loss of throttle response coming on/off throttle. As those valves you are over ridding were purposely designed by Porsche to mitigate turbo spool down, throttle lag. There likely is also a slight loss of of HP/torque lower in the RPM band as a consequence too. Only a dyno could detect that, but the butt dyno can detect the more sluggish throttle. Cheap solutions have a cost. I’m not the consumer type who pays more for less performance, if I can pay extra for better. It’s a 992 not a F150.
Only a slip on exhaust will increase sound volume, add power, and retain the OEM throttle characteristics. Sports CATs will give a slight power bump too, and add more turbo noises. CATs don’t really increase exhaust volume much beyond the turbo sounds however. Note, CATs on MY 21+ 992 are 50/50 CEL gambles regardless of who makes them, and only suited for folks going the ECU tune route. After that, choosing an aftermarket exhaust is purely subjective on the sound you prefer and find appealing. Only you can know.
Some exhausts are manufactured better than others and thus easier to install, but all can be fitted, rarely having to mod/fab freestyle them in. But if you are a DIY type, build tolerances and ease of install will matter to you too. It takes 2-3 hours to put in a well built slip on yourself. Do not have to remove the bumper, but doing so makes it easier to access things. A lot of 992 CATs have their mounting clamps upside down from the factory than you would prefer for a “bumper on” install however. There are methods (double nut) to try if you have the patience, or just pull the bumper, adds an extra hour. None of the current YouTube videos show these clamps how one will likely find them from the OEM. That’s conveniently omitted. For anyone installing a valved exhaust, the default OEM position for the actuators is full open at power off. Make sure the physical valves in the new exhaust match this full open position when reinstalling the OEM actuators to the new exhaust. Otherwise, one is going to get some weird behavior and throw valve codes.
Asking in a forum which exhaust is “louder” or “sounds better” is a fruitless pursuit. That’s all individual taste. YouTube and cell phones don’t capture any of it adequately either unfortunately. One has to hear it first hand or decide sight unseen.
Only a slip on exhaust will increase sound volume, add power, and retain the OEM throttle characteristics. Sports CATs will give a slight power bump too, and add more turbo noises. CATs don’t really increase exhaust volume much beyond the turbo sounds however. Note, CATs on MY 21+ 992 are 50/50 CEL gambles regardless of who makes them, and only suited for folks going the ECU tune route. After that, choosing an aftermarket exhaust is purely subjective on the sound you prefer and find appealing. Only you can know.
Some exhausts are manufactured better than others and thus easier to install, but all can be fitted, rarely having to mod/fab freestyle them in. But if you are a DIY type, build tolerances and ease of install will matter to you too. It takes 2-3 hours to put in a well built slip on yourself. Do not have to remove the bumper, but doing so makes it easier to access things. A lot of 992 CATs have their mounting clamps upside down from the factory than you would prefer for a “bumper on” install however. There are methods (double nut) to try if you have the patience, or just pull the bumper, adds an extra hour. None of the current YouTube videos show these clamps how one will likely find them from the OEM. That’s conveniently omitted. For anyone installing a valved exhaust, the default OEM position for the actuators is full open at power off. Make sure the physical valves in the new exhaust match this full open position when reinstalling the OEM actuators to the new exhaust. Otherwise, one is going to get some weird behavior and throw valve codes.
Asking in a forum which exhaust is “louder” or “sounds better” is a fruitless pursuit. That’s all individual taste. YouTube and cell phones don’t capture any of it adequately either unfortunately. One has to hear it first hand or decide sight unseen.
Last edited by MattBauer; 05-24-2023 at 09:21 AM.
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05-24-2023, 09:29 AM
#72
While the Cargraphic controller is cheap comparably to a slip on/cats, it is not without a disadvantage(s). It doesn’t make the PSE louder overall, still the same exhaust. At WOT it is the same. At lower RPM ranges and idle, it will be get “louder” as the valves are forced open, but still quieter than at WOT 7,000 RPM. The downside is a loss of throttle response coming on/off throttle. As those valves you are over ridding were purposely designed by Porsche to mitigate turbo spool down, throttle lag. There likely is also a slight loss of of HP/torque lower in the RPM band as a consequence too. Only a dyno could detect that, but the butt dyno can detect the more sluggish throttle. Cheap solutions have a cost. I’m not the consumer type who pays more for less performance, if I can pay extra for better. It’s a 992 not a F150.
Only a slip on exhaust will increase sound volume, add power, and retain the OEM throttle characteristics. Sports CATs will give a slight power bump too, and add more turbo noises. CATs don’t really increase exhaust volume much beyond the turbo sounds however. Note, CATs on MY 21+ 992 are 50/50 CEL gambles regardless of who makes them, and only suited for folks going the ECU tune route. After that, choosing an aftermarket exhaust is purely subjective on the sound you prefer and find appealing. Only you can know.
Some exhausts are manufactured better than others and thus easier to install, but all can be fitted, rarely having to mod/fab freestyle them in. But if you are a DIY type, build tolerances and ease of install will matter to you too. It takes 2-3 hours to put in a well built slip on yourself. Do not have to remove the bumper, but doing so makes it easier to access things. A lot of 992 CATs have their mounting clamps upside down from the factory than you would prefer for a “bumper on” install however. There are methods (double nut) to try if you have the patience, or just pull the bumper, adds an extra hour. None of the current YouTube videos show these clamps how one will likely find them from the OEM. That’s conveniently omitted. For anyone installing a valved exhaust, the default OEM position for the actuators is full open at power off. Make sure the physical valves in the new exhaust match this full open position when reinstalling the OEM actuators to the new exhaust. Otherwise, one is going to get some weird behavior and throw valve codes.
Asking in a forum which exhaust is “louder” or “sounds better” is a fruitless pursuit. That’s all individual taste. YouTube and cell phones don’t capture any of it adequately either unfortunately. One has to hear it first hand or decide sight unseen.
Only a slip on exhaust will increase sound volume, add power, and retain the OEM throttle characteristics. Sports CATs will give a slight power bump too, and add more turbo noises. CATs don’t really increase exhaust volume much beyond the turbo sounds however. Note, CATs on MY 21+ 992 are 50/50 CEL gambles regardless of who makes them, and only suited for folks going the ECU tune route. After that, choosing an aftermarket exhaust is purely subjective on the sound you prefer and find appealing. Only you can know.
Some exhausts are manufactured better than others and thus easier to install, but all can be fitted, rarely having to mod/fab freestyle them in. But if you are a DIY type, build tolerances and ease of install will matter to you too. It takes 2-3 hours to put in a well built slip on yourself. Do not have to remove the bumper, but doing so makes it easier to access things. A lot of 992 CATs have their mounting clamps upside down from the factory than you would prefer for a “bumper on” install however. There are methods (double nut) to try if you have the patience, or just pull the bumper, adds an extra hour. None of the current YouTube videos show these clamps how one will likely find them from the OEM. That’s conveniently omitted. For anyone installing a valved exhaust, the default OEM position for the actuators is full open at power off. Make sure the physical valves in the new exhaust match this full open position when reinstalling the OEM actuators to the new exhaust. Otherwise, one is going to get some weird behavior and throw valve codes.
Asking in a forum which exhaust is “louder” or “sounds better” is a fruitless pursuit. That’s all individual taste. YouTube and cell phones don’t capture any of it adequately either unfortunately. One has to hear it first hand or decide sight unseen.
lag or loss of power with the cargraphic. If it does in fact cause that, it is so minuscule that it can’t be detected. You can easily turn on/off the controller as well if you need that extra .000001 in the 1 mile.
05-24-2023, 09:35 AM
#73
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Once broken in, I'll determine if the car can be left this way or needs more mods. I'm really hoping to leave it this way.
