The 992 TTS Exhaust Thread
06-28-2021, 12:12 PM
#31
Rennlist Member
. The digital button is now available on the PCM.
06-28-2021, 03:08 PM
#32
I would have definitely gone this route, especially since I like the twin exhaust tips, and then switched out the exhaust. However, I really dislike the design of the rear valence portion that surrounds the tips on the non-PSE!!! It just doesn't sit well with my eyes. Otherwise, I could have saved $3500, and put that toward the AM exhaust.
06-28-2021, 05:47 PM
#33
Does it do closed, 100% open, and automatic? Are you losing the automatic valve changes as I would guess they are there to maximize power?
Any photo? Thanks.
06-28-2021, 08:05 PM
#35
It acts the same was as the PSE button. From previous threads, it looks like the PSE does not act like 100% opening all the time. You are not losing any of the Porsche programming. It simply gives you the ability to have it open at idle. You can easily hear the difference. Pic coming soon.
06-29-2021, 12:18 PM
#37
06-29-2021, 04:36 PM
#38
Thanks for posting the photo. I am impressed with either how nice your dealer is, or how persuasive you must be. Now if they can just activate the headlights...
This is what I have. The valves open in sport mode below 3000, then are relatively closed between 3000- ~4500, then open partially. In sport plus mode, I suspect the valves are never fully open. The car is louder in 2nd gear at 2500 rpm than in 1st gear at 5500.
Whether you can override, remove, or fix the valves as open remains unclear. From best I can tell, the car selects how open they are.
This is what I have. The valves open in sport mode below 3000, then are relatively closed between 3000- ~4500, then open partially. In sport plus mode, I suspect the valves are never fully open. The car is louder in 2nd gear at 2500 rpm than in 1st gear at 5500.
Whether you can override, remove, or fix the valves as open remains unclear. From best I can tell, the car selects how open they are.
06-29-2021, 05:05 PM
#39
"we use superior catalytic converters "
You use the same 200 cell HJS cores as everybody in the industry except Akravpovic who makes their own proprietary cats.
"If you get the back pressure correct you can pull a lot of power out of the 992 without a tune."
Are you suggesting that the engineers at Fabspeed have been able to find a back pressure that can create more power than the Porsche engineers did in the factory?
I think it may be time to throw down the gauntlet and challenge these numbers.
Anyone in the NY, NJ, CT area with a TTS who would like to volunteer their car for independent Dyno Testing?
I will pay for the Dyno and all the labor to install and remove the exhaust provided Fabspeed will agree to accept a return and full refund if their exhaust (on stock tune) doesnt come close to their advertised numbers.
Not asking Fabspeed to match or exceed their figures for a refund, all I want to see is that it can even come CLOSE to those figures.
Anyone in?
You use the same 200 cell HJS cores as everybody in the industry except Akravpovic who makes their own proprietary cats.
"If you get the back pressure correct you can pull a lot of power out of the 992 without a tune."
Are you suggesting that the engineers at Fabspeed have been able to find a back pressure that can create more power than the Porsche engineers did in the factory?
I think it may be time to throw down the gauntlet and challenge these numbers.
Anyone in the NY, NJ, CT area with a TTS who would like to volunteer their car for independent Dyno Testing?
I will pay for the Dyno and all the labor to install and remove the exhaust provided Fabspeed will agree to accept a return and full refund if their exhaust (on stock tune) doesnt come close to their advertised numbers.
Not asking Fabspeed to match or exceed their figures for a refund, all I want to see is that it can even come CLOSE to those figures.
Anyone in?
06-29-2021, 05:34 PM
#40
Thanks for posting the photo. I am impressed with either how nice your dealer is, or how persuasive you must be. Now if they can just activate the headlights...
This is what I have. The valves open in sport mode below 3000, then are relatively closed between 3000- ~4500, then open partially. In sport plus mode, I suspect the valves are never fully open. The car is louder in 2nd gear at 2500 rpm than in 1st gear at 5500.
Whether you can override, remove, or fix the valves as open remains unclear. From best I can tell, the car selects how open they are.
This is what I have. The valves open in sport mode below 3000, then are relatively closed between 3000- ~4500, then open partially. In sport plus mode, I suspect the valves are never fully open. The car is louder in 2nd gear at 2500 rpm than in 1st gear at 5500.
Whether you can override, remove, or fix the valves as open remains unclear. From best I can tell, the car selects how open they are.
07-12-2021, 04:19 PM
#41
I just made the observation that pressing the boost button in sports mode closes the valves. So it would seem the valves do contribute to the power. The valves sound more closed in sports plus compared to sports. But I do like the greater sonic feedback in sports mode.
UPDATE - I need to try again and see if the exhaust is the same or whether it is just the backfiring in sports mode.
UPDATE - I need to try again and see if the exhaust is the same or whether it is just the backfiring in sports mode.
Last edited by PorscheSince2013; 07-12-2021 at 04:24 PM.
07-12-2021, 09:27 PM
#42
Thanks for sharing the information.
Question1:
After the dealer unlocking the PSE feature on PCM, does it enable only the on/off function of the valve ? Or does it somehow actaully make the exaust sound as PSE ?
Question2:
Is the (non-PSE) stock exaust sound of 992 Turbo (non-S) okay? Or is it significantly worse than the PSE equipped one?
Thank you.
Question1:
After the dealer unlocking the PSE feature on PCM, does it enable only the on/off function of the valve ? Or does it somehow actaully make the exaust sound as PSE ?
Question2:
Is the (non-PSE) stock exaust sound of 992 Turbo (non-S) okay? Or is it significantly worse than the PSE equipped one?
Thank you.
07-13-2021, 06:22 PM
#44
Thanks for sharing the information.
Question1:
After the dealer unlocking the PSE feature on PCM, does it enable only the on/off function of the valve ? Or does it somehow actaully make the exaust sound as PSE ?
Question2:
Is the (non-PSE) stock exaust sound of 992 Turbo (non-S) okay? Or is it significantly worse than the PSE equipped one?
Thank you.
Question1:
After the dealer unlocking the PSE feature on PCM, does it enable only the on/off function of the valve ? Or does it somehow actaully make the exaust sound as PSE ?
Question2:
Is the (non-PSE) stock exaust sound of 992 Turbo (non-S) okay? Or is it significantly worse than the PSE equipped one?
Thank you.