15 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHDesignTec Valvetronic exhaust replacement for PSE
Leading reported evidence
Run later system
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
I run the later system on my C2 and have upgraded from the earlier to later system on my C4.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
If yours is the proper Porsche installation then you can either disconnect the grey/pink wire from the relay board, bend the connector back on the relay or cut a diode inside the relay to disable the speed related change.
Leading evidence: 'Run later system' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'fitment or the silencers themselves' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Disconnect grey/pink wire' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that suspect a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suspected cause
I am trying to figure out if this is due to fitment or the silencers themselves.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that suspect a cause
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suspected cause
who fitted it, as if there is a slight leak or the exhaust is touching the chassis somewhere this often happens at certain speeds or revs and the engine twists a bit and causes the exhaust to touch the chassis somewhere, with mine it was a disused bracket on the rear of the car touching the cats but only at certain revs, I removed it and the problem was gone.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
If yours is the proper Porsche installation then you can either disconnect the grey/pink wire from the relay board, bend the connector back on the relay or cut a diode inside the relay to disable the speed related change.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
I'm looking to replace my PSE which has rusted extensively.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Disconnect grey/pink wire
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
If yours is the proper Porsche installation then you can either disconnect the grey/pink wire from the relay board, bend the connector back on the relay or cut a diode inside the relay to disable the speed related change.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suspected cause
who fitted it, as if there is a slight leak or the exhaust is touching the chassis somewhere this often happens at certain speeds or revs and the engine twists a bit and causes the exhaust to touch the chassis somewhere, with mine it was a disused bracket on the rear of the car touching the cats but only at certain revs, I removed it and the problem was gone.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
15 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261027T044418Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi.
I'm looking to replace my PSE which has rusted extensively. The DesignTec valvetronic (switchable) looks like a bargain at the moment:
http://www.design911.co.uk/fu/prod1...Sports-VALVETRONIC-DesignTek-for-Porsche-996/
Has anyone had any experience of this? And how much work is it to get it to work with the dash button control (and speed control) of the original PSE?
Cheers,
Ben
Hi Ben, I have read a number of negative posts re the designtek exhausts baffeling breaking up.
I have a topgear valvetronic set up and its been on the car for 2 years with no issues, give Alex a call at Topgear, I would expect you to get one after haggling for around £750 maybe a little less. Don't worry they they might not show one in stock as they are the manufacturer and make them so will sort one for you.better to buy from the manufacturer than a middle man, also they have fitting partners across the UK if there site in Dorset is too far for you to go, so getting it fitted is easy.
Lastly they do a payment plan so you can spread the cost over 6 months make it even more interesting lol.
Quite a few guys on the forum have brought these for there 996 and 997s
HOPE THAT HELPS
https://www.topgear.co.uk/exhausts
Thanks for the replies to this. I went with the Top Gear valvetronic one in the end.
Nice sound at low speed but I find there's a bit of a drone on the motorway (70+).
Is there a way to stop the PSE circuit changing it back to the loud setting above 50? Ideally it would be loud until about 40mph then switch to the quiet setting.
Ben, the topgear unit shouldn't drone at 70 ,I have had it on at 140 mph and I only needed to raise my voice a bit for the passenger to hear me, I have a couple of questions . who fitted it, as if there is a slight leak or the exhaust is touching the chassis somewhere this often happens at certain speeds or revs and the engine twists a bit and causes the exhaust to touch the chassis somewhere, with mine it was a disused bracket on the rear of the car touching the cats but only at certain revs, I removed it and the problem was gone.
The second was your comment that the circuit opens and closes at certain speeds ,have you done something to make this happen as mine works off the key fob remote and can be open or closed when I want it to be at any speed or revs ,so if for example as you say you would like it in off mode over 70 then I would just push the remote button and turn it off. maybe you can give more detail as to what you have done with yours to make it operate differently to mine. :thumb:
@Isoproturon
I had these installed on my carrera c2 and am having very loud low frequency noise at low revs, and droning on the motorway. I am trying to figure out if this is due to fitment or the silencers themselves. Are you able to confirm you have none of these issues?
thanks
james
Not sure how far your exhaust has gone but my 2000
C2 pse had a issue with their flexi joint so had them cut out and
Had new flexi added this kept my car original protected the wonderful
Sound you get from a OE PSE and only cost £200.
My car was a PSE car, however when i purchased it it was equipped with non-switchable Dansk silencers. So no original PSE silencers to refurb (and no spare valves!)
I could go back to the Dansk but i would really like to have switchable.
If yours is the proper Porsche installation then you can either disconnect the grey/pink wire from the relay board, bend the connector back on the relay or cut a diode inside the relay to disable the speed related change.
If you have the later manually switchable system it will do whatever the switch is set to if you cut the wire. If you have the earlier automatic system it would make it loud all the time I think. You can upgrade by changing the relay and adding the switch. I run the later system on my C2 and have upgraded from the earlier to later system on my C4.
MC
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