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996 TT Exhaust - Page 1 - Porsche General - PistonHeads UK

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Original source
7 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH996 TT Exhaust - Page 1 - Porsche General - PistonHeads UK

Leading reported evidence

Replace cats

Suggestion or failed attempt

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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.

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Suggestion

Personally I would just replace the cats with a bypass, if not, get sport cats.

996 TT Exhaust - Page 1 - Porsche General - PistonHeads UK
Read full discussion summary

Leading evidence: 'Replace cats' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace cats' (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.

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1 matching discussions · 7 captured posts examined · 1 partial discussions

Compare 2 other evidence results

Replace sports exhaust' like we

Suggestion or failed attempt

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 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

996TT forum,,,the guys on there change sports exhaust' like we change toothbrushes.

996 TT Exhaust - Page 1 - Porsche General - PistonHeads UK

Replace toothbrushes

Suggestion or failed attempt

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 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

996TT forum,,,the guys on there change sports exhaust' like we change toothbrushes.

996 TT Exhaust - Page 1 - Porsche General - PistonHeads UK
Frequently discussed actions (3)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace cats

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

Personally I would just replace the cats with a bypass, if not, get sport cats.

996 TT Exhaust - Page 1 - Porsche General - PistonHeads UK

Replace sports exhaust' like we

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

996TT forum,,,the guys on there change sports exhaust' like we change toothbrushes.

996 TT Exhaust - Page 1 - Porsche General - PistonHeads UK

Replace toothbrushes

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

996TT forum,,,the guys on there change sports exhaust' like we change toothbrushes.

996 TT Exhaust - Page 1 - Porsche General - PistonHeads UK
Coverage and how to read this overview

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.

7 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • PistonHeads: 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: 20261026T144035Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Not made by Porsche,,but Techart,cargraphics,Europipe to name a few can supply one,,,they normally start at £3000+ and utilise better flowing 100 cell cats which don't last that long (compared to regular cats). Usual spurious 15-25 bhp improvement claims.

POST 2 / ORIGINAL POSTEROriginal post

Extra 10-25hp in a K&N max power kind of way!

POST 3Original post

You know the score....For the regular aspirated 996 model Porsche can supply a sports exhaust for approx £1500...Interesting enough they do not claim any increase in performance at all just a different sound.

POST 4Original post

A sports exhaust will make a difference to a turbo. The standard 996tt exhaust is pants, get rid of it. However, that is secondary to the cats, they do the majority of the damage. Personally I would just replace the cats with a bypass, if not, get sport cats. I believe you will see a good 25 bhp (from experience with my car). I think a forum member called Lee went to G-force-motorsport.co.uk for exhaust and filter..... He posted some pretty good results. Do a search on the forum, i'm sure the post will turn up. As far as make is concerned, I believe most of the after market guys are rebadged FVD.de products. I also recall that G-force are now the UK/European distributor. For more info I would have a look on rennlist.com. There are some serious tuning monkeys posting regular mouth watering tails of performance modifications.....

POST 5Original post

If you are serious about this go to the www.rennlist.com 996TT forum,,,the guys on there change sports exhaust' like we change toothbrushes. Europipe seems to be the fitment of choice. Also consider potential voiding warranty with Porsche UK.

POST 6 / ORIGINAL POSTEROriginal post

Car will be registered in the IOM so I don't even legally need the cats! Bypass looks like a good first step........ (....after I have purchased the car of course!)

POST 7 / ORIGINAL POSTEROriginal post

Is there a non-standard "sport" version that enhances the sound rather than emulating a 1982 Nova with a drilled exhaust?

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