X-Pipe or Silencer delete?
Thread Starter
Advanced
Joined: Jan 2025
Posts: 63
Likes: 35
X-Pipe or Silencer delete?
Hi all, now that my 911 C2S Cab is finally working again, I was thinking of treating her to a little exhaust upgrade.
I do find that it is a little "quiet" on tick over and really only gets a voice when you are using Sport mode. I have mapped a new PSE button to allow me to use "PSE Light" via some programming, which is OK, but not ideal for a true sound change.
But...I don't want to go full system, or retrofit a PSE valved. I was looking at some products by a company called "Top Gear" here in the UK and they offer - what appear - good value and quality options.
One is an x-pipe option, the other a silencer bypass. Links below.
https://www.topgear.co.uk/porsche-91...rice&order=ASC
https://www.topgear.co.uk/porsche-91...-valved-x-pipe
Any thoughts or experiences?
I do find that it is a little "quiet" on tick over and really only gets a voice when you are using Sport mode. I have mapped a new PSE button to allow me to use "PSE Light" via some programming, which is OK, but not ideal for a true sound change.
But...I don't want to go full system, or retrofit a PSE valved. I was looking at some products by a company called "Top Gear" here in the UK and they offer - what appear - good value and quality options.
One is an x-pipe option, the other a silencer bypass. Links below.
https://www.topgear.co.uk/porsche-91...rice&order=ASC
https://www.topgear.co.uk/porsche-91...-valved-x-pipe
Any thoughts or experiences?
Three Wheelin'
Joined: Aug 2012
Posts: 1,835
Likes: 209
Hi all, now that my 911 C2S Cab is finally working again, I was thinking of treating her to a little exhaust upgrade.
I do find that it is a little "quiet" on tick over and really only gets a voice when you are using Sport mode. I have mapped a new PSE button to allow me to use "PSE Light" via some programming, which is OK, but not ideal for a true sound change.
But...I don't want to go full system, or retrofit a PSE valved. I was looking at some products by a company called "Top Gear" here in the UK and they offer - what appear - good value and quality options.
One is an x-pipe option, the other a silencer bypass. Links below.
https://www.topgear.co.uk/porsche-91...rice&order=ASC
https://www.topgear.co.uk/porsche-91...-valved-x-pipe
Any thoughts or experiences?
I do find that it is a little "quiet" on tick over and really only gets a voice when you are using Sport mode. I have mapped a new PSE button to allow me to use "PSE Light" via some programming, which is OK, but not ideal for a true sound change.
But...I don't want to go full system, or retrofit a PSE valved. I was looking at some products by a company called "Top Gear" here in the UK and they offer - what appear - good value and quality options.
One is an x-pipe option, the other a silencer bypass. Links below.
https://www.topgear.co.uk/porsche-91...rice&order=ASC
https://www.topgear.co.uk/porsche-91...-valved-x-pipe
Any thoughts or experiences?
They'll happily take your money but you'll get crickets if you want after sales service.
Many have had zero communication from them, they just don't reply.
I don't really like bagging a company but l have had 1st hand experience along with others.
Do your research.
Instructor
Joined: Jul 2021
Posts: 149
Likes: 74
I have the topgear x pipe you listed. The exhaust valves are opposite of what the car is supposed to do, so you can't use your PSE button. You have to use their terrible valve controller that needs to be wired in. This is not advertised and they absolutely do not care about you. There is zero customer service. I cant say this loud enough, DO NOT BUY ANYTHING FROM TOPGEAR EXHAUST. However any of the other major brands that make x-pipes seem to be good.
Thread Starter
Advanced
Joined: Jan 2025
Posts: 63
Likes: 35
Thread Starter
Advanced
Joined: Jan 2025
Posts: 63
Likes: 35
I have the topgear x pipe you listed. The exhaust valves are opposite of what the car is supposed to do, so you can't use your PSE button. You have to use their terrible valve controller that needs to be wired in. This is not advertised and they absolutely do not care about you. There is zero customer service. I cant say this loud enough, DO NOT BUY ANYTHING FROM TOPGEAR EXHAUST. However any of the other major brands that make x-pipes seem to be good.
If my car doesn't have the PSE as standard, why cant I use the "redundant" switch that has been added? Interesting to understand what your experience has been with it.
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Instructor
Joined: Jul 2021
Posts: 149
Likes: 74
Really interesting - I have had positive feedback from others in the UK about their product and support (different forum I would point out). Mostly Caymen and Boxster IIRC.
If my car doesn't have the PSE as standard, why cant I use the "redundant" switch that has been added? Interesting to understand what your experience has been with it.
If my car doesn't have the PSE as standard, why cant I use the "redundant" switch that has been added? Interesting to understand what your experience has been with it.
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5th Gear
Joined: May 2026
Posts: 5
Likes: 3
I looked into these a bit and I think that its a you get what you pay for product. I ended up with the Sharkwerks sport exhaust as it seemed high quality and much more cost effective than some others. 100% recommend them, the system is great and the sound was what I was looking for. A solid improvement over stock, but not droning or obnoxious.
Rennlist Member
Joined: Mar 2024
Posts: 172
Likes: 94
From: DFW
From my experience, I had a 981S with Cargraphic exhaust. Loved it, there’s drone I’m not going to lie. I did drive from DFW to OK city with my wife and it was acceptable.
Now with my 991.1 S cab, I bought Top Gear side pipes (not the main x pipe). They were REALLY REALLY LOUD. Sounds really great too. They were fun for about 20 minutes then the drone killed any conversation you’re trying to have.
PSE on or off made little difference. So I swapped it back to OEM and instantly I felt the power loss, don’t miss the drones but really missed the torque.
So the stupid me swapped them back again. Drove it couple of times couldn’t stand the drone, now, swapped them back again. I think I learned my lessons and keep OEM PSE now.
I just placed an order for Cargraphic x pipe main exhaust, I hope this will be the best solution for louder, droneless AND regaining my lost power.
I’m planning on driving to the next RennSport reunion 2028 so I still have time to fine tune the exhaust system. Just need to make the right choice.
I also hear from few guys here that Kline Innovation exhaust system are really good 👍 but the inconel is about $8k, bit too steep for my wallet.
Yes, you get what you pay for and time wasted. Also my attic space is limited.
Now with my 991.1 S cab, I bought Top Gear side pipes (not the main x pipe). They were REALLY REALLY LOUD. Sounds really great too. They were fun for about 20 minutes then the drone killed any conversation you’re trying to have.
PSE on or off made little difference. So I swapped it back to OEM and instantly I felt the power loss, don’t miss the drones but really missed the torque.
So the stupid me swapped them back again. Drove it couple of times couldn’t stand the drone, now, swapped them back again. I think I learned my lessons and keep OEM PSE now.
I just placed an order for Cargraphic x pipe main exhaust, I hope this will be the best solution for louder, droneless AND regaining my lost power.
I’m planning on driving to the next RennSport reunion 2028 so I still have time to fine tune the exhaust system. Just need to make the right choice.
I also hear from few guys here that Kline Innovation exhaust system are really good 👍 but the inconel is about $8k, bit too steep for my wallet.
Yes, you get what you pay for and time wasted. Also my attic space is limited.
Last edited by baby991; May 6, 2026 at 12:29 AM.
3rd Gear
Joined: Jul 2024
Posts: 4
Likes: 0
From: Atlanta, GA
From my experience, I had a 981S with Cargraphic exhaust. Loved it, there’s drone I’m not going to lie. I did drive from DFW to OK city with my wife and it was acceptable.
Now with my 991.1 S cab, I bought Top Gear side pipes (not the main x pipe). They were REALLY REALLY LOUD. Sounds really great too. They were fun for about 20 minutes then the drone killed any conversation you’re trying to have.
PSE on or off made little difference. So I swapped it back to OEM and instantly I felt the power loss, don’t miss the drones but really missed the torque.
So the stupid me swapped them back again. Drove it couple of times couldn’t stand the drone, now, swapped them back again. I think I learned my lessons and keep OEM PSE now.
I just placed an order for Cargraphic x pipe main exhaust, I hope this will be the best solution for louder, droneless AND regaining my lost power.
I’m planning on driving to the next RennSport reunion 2028 so I still have time to fine tune the exhaust system. Just need to make the right choice.
I also hear from few guys here that Kline Innovation exhaust system are really good 👍 but the inconel is about $8k, bit too steep for my wallet.
Yes, you get what you pay for and time wasted. Also my attic space is limited.
Now with my 991.1 S cab, I bought Top Gear side pipes (not the main x pipe). They were REALLY REALLY LOUD. Sounds really great too. They were fun for about 20 minutes then the drone killed any conversation you’re trying to have.
PSE on or off made little difference. So I swapped it back to OEM and instantly I felt the power loss, don’t miss the drones but really missed the torque.
So the stupid me swapped them back again. Drove it couple of times couldn’t stand the drone, now, swapped them back again. I think I learned my lessons and keep OEM PSE now.
I just placed an order for Cargraphic x pipe main exhaust, I hope this will be the best solution for louder, droneless AND regaining my lost power.
I’m planning on driving to the next RennSport reunion 2028 so I still have time to fine tune the exhaust system. Just need to make the right choice.
I also hear from few guys here that Kline Innovation exhaust system are really good 👍 but the inconel is about $8k, bit too steep for my wallet.
Yes, you get what you pay for and time wasted. Also my attic space is limited.
Instructor
Joined: Jul 2021
Posts: 149
Likes: 74
Rennlist Member
Joined: Mar 2021
Posts: 1,791
Likes: 582
From: Hockley TX
I understand butttttt from a fit, finish, power, sound, they are the best exhaust money can buy for these cars. You can find them on FB Market place and even here every so often, but remember you pay for what you get! I have their full system, long tube headers 200 cell cats and valved x pipe and love it. Just a thought.
