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When you are inside the car driving, do you hear any difference on the exhaust sound between sport and sport +? I'm pretty sure I don't, but not sure if you need to be outside or have windows down or something to hear the pops and burbles in Sport.
This is my personal experience, not detailed technical information. September 2nd 2025 I bought a CPO 2024 992.1 911 Carrera T (7-speed manual) with 3354 miles. I drove it almost everyday since I drove it home. I was almost exclusively driving in Normal mode, thinking I didn't need it to be louder (I'm an older dude), the ride was nice and firm the way it was, and I didn't want to have to disable the Auto Blip function every time in the PCM. I used the Diamond button on the steering wheel to disable Stop/Start every time I started the car.
Then I realized the Sport and Sport Plus settings had a higher idle speed, ~800 RPMs instead of ~600 RPMs in Normal mode. That simple change made it much easier for me for daily driving. For me, 600 RPMs is too low and made it easier to stall needing more throttle to get moving. Both of my VW Golfs, a 2019 MK7.5 Golf R and a 2010 MK6 Golf TDI, idle at ~800 RPMs. That just feels right to me. Also, the Start/Stop thing was kind of a nuisance because the indicator light doesn't always illuminate so you're not sure it's off unless you check in the settings in the PCM.
Now I use Individual mode, Sport Plus, Auto Blip off, and Start/Stop is also off. After starting the car, simply turning the dial 3 clicks on the steering wheel puts me in "Sport Plus Individual" mode. You know for sure you're in that mode because it's clearly displayed on the instrument cluster, the red lights on the dash are illuminated and the car sounds different. And since I know for sure Start/Stop is off in that mode, I reassigned the Diamond button to a different function.
It's perfect for me now in "Sport Plus Individual" mode! I can't say I ever heard pops (backfire) from my exhaust, but it does gurgle. It's not too loud, just a bit more sound, a deep growl at lower RPMs, and a bit more gurgling. I love the gurgles. I also prefer the slightly stiffer suspension setting for the country roads in the rural Philadelphia suburbs where I live. Even on the highway, the slightly stiffer suspension seems better for me, maybe just a bit more stable but not harsh. And it's nice to know for sure Stop/Start is off, Auto Blip is off, and to be able to use the Diamond button for a different function.
I was playing more with settings in the Individual Mode and found out that the Exhaust has 3 settings, Normal, Sport and Sport Plus! There really is a different exhaust setting for Sport Plus Mode. It's not just adding the stiffer suspension setting when you turn the ****. The fact that there is a difference in the exhaust is indicated in the image on the first page of this thread (included below). So in Individual Mode you can get the Sport exhaust (with Backfire) and the Sport Plus suspension. You don't have to have the Sport Plus exhaust with the stiffer suspension, although the Owner's Manual indicates Sport Plus is Maximum performance. Backfires must not be optimal for maximum performance.
From Online Owner's Manual
SPORT
Moves the control systems further towards high emotion and dynamism during everyday driving.
SPORT PLUS
Maximum performance for race circuit-like operation.
I was playing more with settings in the Individual Mode and found out that the Exhaust has 3 settings, Normal, Sport and Sport Plus! There really is a different exhaust setting for Sport Plus Mode. It's not just adding the stiffer suspension setting when you turn the ****. The fact that there is a difference in the exhaust is indicated in the image on the first page of this thread (included below). So in Individual Mode you can get the Sport exhaust (with Backfire) and the Sport Plus suspension. You don't have to have the Sport Plus exhaust with the stiffer suspension, although the Owner's Manual indicates Sport Plus is Maximum performance. Backfires must not be optimal for maximum performance.
From Online Owner's Manual
SPORT
Moves the control systems further towards high emotion and dynamism during everyday driving.
SPORT PLUS
Maximum performance for race circuit-like operation.
Not sure if your car is a .1 or .2; the attached gives a much more detailed list of the differences between the modes. They change that burbling on overrun through engine timing, not the exhaust itself.
^^Wow, that's great information @aggie57 , especially the Power train page (below). I think that's the kind of information the OP wanted. My car is a 2024 992.1 Carrera T.
It looks like maybe Individual Mode with Sport Plus for the Drive train (I think it simply says Exhaust in the PCM) and Normal for the suspension might be great.
Love it: "intermediate throttle application" = "Zwischengas". Explains the function much better than "auto blip".
Also, there are no backfires in a 992 unless there is something seriously wrong with the car.
^^Wow, that's great information @aggie57 , especially the Power train page (below). I think that's the kind of information the OP wanted. My car is a 2024 992.1 Carrera T.
It looks like maybe Individual Mode with Sport Plus for the Drive train (I think it simply says Exhaust in the PCM) and Normal for the suspension might be great.
Another feature of Sport Plus that gets overlooked often enough is the engine cooling. In Sport Plus, all cooling valves/paths are open, which is needed at the track.
Whilst it's not much of an issue once you're warmed up and driving, the car does take significantly longer to come to operating temp in Sport Plus, especially in winter.
In normal driving, my coolant temp hovers between 100-110C, however, in Sport Plus, it's at 90C (yes, the coolant temp is a fake number from Porsche, covering a large range of actual temps)
No, they do not.
Backfire = combustion happening where it should NOT happen
Crackles / burbles / pops = combustion happening where it can happen
That difference is mechanical, not semantic.
are you serious? What I'm saying and what we are talking about is...... the person above that said the word 'backfire', was referring to the crackles and burbles... you all caught up now? deep breaths. Sigh, there's always one.
Another feature of Sport Plus that gets overlooked often enough is the engine cooling. In Sport Plus, all cooling valves/paths are open, which is needed at the track.
Whilst it's not much of an issue once you're warmed up and driving, the car does take significantly longer to come to operating temp in Sport Plus, especially in winter.
In normal driving, my coolant temp hovers between 100-110C, however, in Sport Plus, it's at 90C (yes, the coolant temp is a fake number from Porsche, covering a large range of actual temps)
I was wrong about the exhaust having 3 modes in the Individual settings. That was the Drive mode!
_
"Sport exhaust system" is "checked" to be on or off if unchecked
"Chassis" can be Normal or Sport
"Drive mode" has 3 settings, Normal, Sport, and Sport Plus
You can have Normal chassis, no Sport exhaust, with Sport Plus for the Drive Mode. It still has the higher idle, but quieter, and without a firmer suspension.
I wish someone that knew more about these cars would look at the information above and discuss what might be the optimal settings, e.g., Wastegate open or closed, Dynamic Boost Normal or High, and boost gauge before or after the TV). Is it best to have the Sport exhaust enabled with the Drive mode in Sport or Sport plus? The Chassis appears to be its own thing, just Normal or Sport for a firmer ride. But there must be interplay with the Sport Exhaust and the Drive mode being in Normal, Sport, or Sport plus. I like the higher idle in Sport and Sport plus and no Stop/Start, but I don't need the car to be louder just like I don't need the ride to be firmer. Just the Drive mode in Sport or Sport plus does that for me without any change to the sound or the suspension.
PS: The thing about using the word "Backfire" in my earlier post was because that word was used in some of the documentation above. It looked like the Sport setting was intended to provide backfires and Sport plus was not.
_.
I wanted more information on “driver intention implementation” and found this…
In Porsche’s functional description of driving modes for the 911 (992.2), "driver intention implementation" refers to the system's ability to interpret real-time driver inputs (such as pedal speed and steering angle) and automatically adjust vehicle dynamics to match those actions within a selected mode.
Rather than being a static setting, this mechanism ensures the car's behavior aligns with how the driver is currently operating it:
Dynamic Response: The system monitors the speed and intensity of throttle and brake applications. If a driver suddenly accelerates aggressively while in "Normal" mode, the car may temporarily prioritize sharper response or delayed upshifts to meet that immediate "intention".
Adaptive Mapping: Each driving mode (Normal, Sport, Sport Plus) provides a different "baseline" for this implementation. In Sport Plus, for example, the threshold for interpreting an aggressive intention is lower, leading to instantaneous performance shifts.
Safety and Support: In Wet Mode, the implementation shifts toward stability. If the system detects a loss of traction or "steering errors," it adjusts power delivery to ensure the driver’s intention (e.g., turning or accelerating) is executed safely without losing control.
Component Sync: It coordinates various systems—including PASM (suspension), PDK(transmission), and PSM (stability)—to act as a unified response to the driver's mood or the road conditions
