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YOUR RESEARCHNoise levels of 996 tt with sports exhaust? - Page 1 - Porsche General - PistonHeads UK
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Install on his 996tt, saying it wouldn't affect his warranty
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I remember Rich1231 having had a chat with Porsche GB who had no problem with an aftermarket exhaust system being fitted on his 996tt, saying it wouldn't affect his warranty.
Noise levels of 996 tt with sports exhaust? - Page 1 - Porsche General - PistonHeads UK
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Leading evidence: 'Install on his 996tt, saying it wouldn't affect his warranty' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install on his 996tt, saying it wouldn't affect his warranty' (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.
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Suggestion
Sports exhaust sounds perfect with this feature,switch to quiet mode for sound test...then proper noise out on the track.
Noise levels of 996 tt with sports exhaust? - Page 1 - Porsche General - PistonHeads UK
Test pipes)
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Suggestion
Iguana - you're spot on - but to bypass this problem we put in so-called "o2 simulators" so the Lambda probes give the ECU the correct readings - theoretically you can then fit no cats (test pipes) but this isn't always adviseable on Porkers - most Porker engines DO need some backpressure.
Noise levels of 996 tt with sports exhaust? - Page 1 - Porsche General - PistonHeads UK
Use 'supertraps' or some such
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Suggestion · Original poster
I assume I'll have to stick with the std - but if the sports exhaust sounds much better, can one use 'supertraps' or some such to shut them up a bit, and if so, what then does the car read?
Noise levels of 996 tt with sports exhaust? - Page 1 - Porsche General - PistonHeads UK
Frequently discussed actions (4)
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Install on his 996tt, saying it wouldn't affect his warranty
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I remember Rich1231 having had a chat with Porsche GB who had no problem with an aftermarket exhaust system being fitted on his 996tt, saying it wouldn't affect his warranty.
Noise levels of 996 tt with sports exhaust? - Page 1 - Porsche General - PistonHeads UK
Test pipes)
No successful repair reported for this finding.
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Suggestion
Iguana - you're spot on - but to bypass this problem we put in so-called "o2 simulators" so the Lambda probes give the ECU the correct readings - theoretically you can then fit no cats (test pipes) but this isn't always adviseable on Porkers - most Porker engines DO need some backpressure.
Noise levels of 996 tt with sports exhaust? - Page 1 - Porsche General - PistonHeads UK
Use 'supertraps' or some such
No successful repair reported for this finding.
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Suggestion · Original poster
I assume I'll have to stick with the std - but if the sports exhaust sounds much better, can one use 'supertraps' or some such to shut them up a bit, and if so, what then does the car read?
Noise levels of 996 tt with sports exhaust? - Page 1 - Porsche General - PistonHeads UK
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13 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
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I thought the latest sports exhausts had a dash mounted
switch to put them in quiet mode if required,opens / closes a flap or something..Check with the dealers as there was some delay in cars coming through with these fitted,then they were talking about going back to conventional exhausts etc...
Sports exhaust sounds perfect with this feature,switch to quiet mode for sound test...then proper noise out on the track.
I think X50s are louder than standard (Manu told me). Although Lee77's old car sounded superb at VW in september(tuned to 470bhp plus after market exhausts).
DAZ
>> Edited by dazren (moderator) on Monday 24th February 09:30
I've just been quoted today for a sports exhaust. The chief engineer of my german OPC told me about the switch, so it is true.
Sounds effing wonderful!!!!!
Hmmmm
My dealer just e-mailed me back and I quote...
"Currently there is no Sports Exhaust available for the 911 Turbo"
Perhaps its a third party / retro fit? Any thoughts or experiences?
>> Edited by getcarter on Tuesday 25th February 13:01
I don't know too much about the Porsche system but I'm guessing that it's just a freer flowing rear silencer. Most aftermaket ones contain integrated 100 cell cats which is what allows them to boost power (and cost
) soo much (cats choke turbos) - the Techarts we do come in 3 versions - touring/sport/race.... Porsches are wayyy to quiet.
>> Edited by manu on Tuesday 25th February 14:35
Isn't this option only available on the 996 Carrera 2 and 4. I've not heard of it being available on the turbo either as factory fit or retrospectively.
I remember Rich1231 having had a chat with Porsche GB who had no problem with an aftermarket exhaust system being fitted on his 996tt, saying it wouldn't affect his warranty.
DAZ
this is a german OPC fitting a sports exhaust to a year 2002 996 Targa - "around" EUR 2,000.00
I don't know if this includes or is net of VAT. Probably net of VAT, so add 16%.
It wasn't a full-blown quote. I asked "around how much", and was answred "around 2000"
I think I'll go for it - when business has stopped being so crap.
Rgds, WalterU
Most modern stuff has to have 200 cell cats now days as the have 2 lambda probes- 1 pre cat & 1 after and the 100 cell jobbies are usually not quite enough for this type of set up.
Iguana - you're spot on - but to bypass this problem we put in so-called "o2 simulators" so the Lambda probes give the ECU the correct readings - theoretically you can then fit no cats (test pipes) but this isn't always adviseable on Porkers - most Porker engines DO need some backpressure.
Incidentally - anyone here ever got away with fitting 10 cell race cats??
>> Edited by manu on Wednesday 26th February 17:09
>> Edited by manu on Wednesday 26th February 17:09
Me come to pester you lot once more..
Can anybody tell me what the 996 tt reads
...with the std exauast
...and with the sports exhaust
(@.5 metre @ 3/4 revs)?
You'll gess this is to get past the noise police on track days. I assume I'll have to stick with the std - but if the sports exhaust sounds much better, can one use 'supertraps' or some such to shut them up a bit, and if so, what then does the car read?
(I had to rip the proper exhaust off my R500 and put a dustbin sized silencer on just to get down to 100 db)
Ta for any help chaps
Steve
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