PistonHeads

964 G pipe and decat - Page 1 - 911/Carrera GT - PistonHeads UK

Add to repair workspace

New repair projectOpen repair workspace

Original source

7 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH964 G pipe and decat - Page 1 - 911/Carrera GT - PistonHeads UK

Leading reported evidence

Replace back

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 · Original poster
I'm having it changed back today.
Original post Read captured discussion
964 G pipe and decat - Page 1 - 911/Carrera GT - PistonHeads UK

Read full discussion summary

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

Read captured replies

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

Compare 2 other evidence results

Replace primary silencer

Suggestion or failed attempt

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
That's what I've heard - best noise is from replacing the primary silencer with a bypass - "cup pipe".
Original post Read captured discussion
964 G pipe and decat - Page 1 - 911/Carrera GT - PistonHeads UK

Run on 964s

Suggestion or failed attempt

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 · Original poster
What are people generally running on 964s?
Original post Read captured discussion
964 G pipe and decat - Page 1 - 911/Carrera GT - 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 back

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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 · Original poster
I'm having it changed back today.
Original post Read captured discussion
964 G pipe and decat - Page 1 - 911/Carrera GT - PistonHeads UK

Replace primary silencer

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
That's what I've heard - best noise is from replacing the primary silencer with a bypass - "cup pipe".
Original post Read captured discussion
964 G pipe and decat - Page 1 - 911/Carrera GT - PistonHeads UK

Run on 964s

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 · Original poster
What are people generally running on 964s?
Original post Read captured discussion
964 G pipe and decat - Page 1 - 911/Carrera GT - 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: 20261026T105141Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Anyone running this set up? I've just put it onto my 964 and have to say it's louder than anything I've ever heard on a car. It's completely anti social and hurts your ears if you are caught behind it. I'm going to try the various options of putting the cat back on and putting the back box back on. What are people generally running on 964s?

POST 2Original post

Hiya, I've done all sorts of variations including the one you describe. Have ended up with just the RS pipe on my 964 C2, best blend of Porsche noise and liveability. If you are Bucks/ Oxon way, happy for you to pop round for a listen. Cheers Slodge

POST 3Original post

I have just the G-pipe as a mod from standard and it's a pretty good noise from the drivers seat. Tempted to de-cat but not sure it's a great plan - I'm planning to be at Silverstone Sunday Service - if you're there it would be good to compare?

POST 4 / ORIGINAL POSTEROriginal post

N24 said: I have just the G-pipe as a mod from standard and it's a pretty good noise from the drivers seat. Tempted to de-cat but not sure it's a great plan - I'm planning to be at Silverstone Sunday Service - if you're there it would be good to compare? I'm having it changed back today. It's honestly way way too loud. The noise on the over-run is just absolutely nuts.

POST 5Original post

That's what I've heard - best noise is from replacing the primary silencer with a bypass - "cup pipe". I went for a G-pipe this time as my secondary silencer had split & too far gone to repair.

POST 6Original post

Decat and Cup for me which is loud but not rediculous. My specialist allways passes comment at service time... "sounds lovely this one" and he is no schmoozer. For £60, the S/S decat pipes on Ebay are excellent (no affiliation).

POST 7 / ORIGINAL POSTEROriginal post

I've gone decat and sports pipe in the end. Much more liveable, but the overrun on the g pipe and decat was something else.

This is a source reference. Confirm exact model applicability in the original material.