fullymatted.
Back to search
911uk

performance headers

Add to repair workspace
Open repair workspace
Original source
5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHperformance headers

Leading reported evidence

Replace sound a bit

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

As Zero says not realy worth it unless if your going for big power , they do change the sound a bit which i like but power for £££ the money is better spent elsewhere.

performance headers
Read full discussion summary

Leading evidence: 'Replace sound a bit' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace sound a bit' (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 · 5 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Set lying

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

PS if your looking for a set of stock headers to port i have a set lying .

performance headers
Frequently discussed actions (2)

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

Replace sound a bit

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

As Zero says not realy worth it unless if your going for big power , they do change the sound a bit which i like but power for £££ the money is better spent elsewhere.

performance headers

Set lying

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

PS if your looking for a set of stock headers to port i have a set lying .

performance headers
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.

5 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: 20261026T061123Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi...Has anybody had performance headers fitted... I have a 996TT, and seen a number of performance tuners selling them. Any feedback on gains by having them fitted.

POST 2Original post

Don't bother. The stock headers flow well and insulate great. Port your existing headers if it matters to you. I have some very expensive inconel headers, and whilst they do flow a bit better, and have subtly altered the sound of the car, its hard to justify them on a £ for performance basis.

POST 3Original post

As Zero says not realy worth it unless if your going for big power , they do change the sound a bit which i like but power for £££ the money is better spent elsewhere. PS if your looking for a set of stock headers to port i have a set lying .

POST 4 / ORIGINAL POSTEROriginal post

Thanks for the info....i have seen a number of headers for around the £800 mark, but also seen the ebay items at £170. I am hoping to acheive around 580 bhp when all is done. Does a specialists do the porting or a machine shop. Thanks all

POST 5Original post

Either should be able to port them for you. I'm sure theres a few for sale also tho. What mods are you thinking of to get to 580hp ?

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