13 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH996 new exhaust system
Leading reported evidence
Replace every nut and bolt
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Discussions that contain suggestions
1
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Suggestion
I am now replacing every nut and bolt from the manifold back with marine grade stainless steel which won't help me but will relieve the next owner of the misery I experienced
Leading evidence: 'Replace every nut and bolt' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace every nut and bolt' (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.
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1
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Suggestion · Original poster
I pl an to replace the manifolds/headers at the same time.
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.
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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.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
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
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These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Replace every nut and bolt
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
I am now replacing every nut and bolt from the manifold back with marine grade stainless steel which won't help me but will relieve the next owner of the misery I experienced
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.
13 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: 20261026T113718Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi,I expect my rebuilt engine back before xmas. I plan to replace the whole system. I think the Topgear option with the quieter box seems to be an ideal set up. What do others think? I pl an to replace the manifolds/headers at the same time. I have seen some on ebay for £160/£170. These seem cheap compared to Topgears @ £450. Anybody tried these and what was the quality like? Look forward to some input. Mike.
£135:
https://www.ebay.co.uk/itm/STAINLES...-911-996-3-4-3-6-99-04-NON-TURBO/202409271481
Had them on for 4 years & 40k miles. Nothing wtrong with them. Bit louder than stock too.
Did a couple of reviews here:
http://911uk.com/viewtopic.php?t=107741
I recently went for the full Top Gear system from front to back with the mild sport boxes and regular 200 cell cat pipes (rather than x-pipe).
I went with the Top Gear headers purely for convenience and the expectation that they would fit with the rest of the Top Gear system.
It's still early days and I don't think the system has fully bedded in yet (probably only done c.600 miles). It is currently a little boomy at certain revs, but is generally unobtrusive at motorway speed, but definitely throatier under acceleration. It certainly sounds less "911" than previously, and doesn't have the turbine-like howl at the top of the rev range - not good or bad, just different !
I need to put more miles on it and drive in different situations, but for now the jury is out.
I can't knock the quality, price or fitment. It all went on very nicely and looks the part.
Some of the ebay ones have crude 3 into 1 joints that appear to have an overlay metal strip welded on. The better ones have cut and butt welded tubes. PPBB uses ebay ones on his 300k miler.
Ian
Re: 996 manifold
Sorry Mike, I missed the last digit out. Now updated:
https://www.ebay.co.uk/itm/STAINLES...-911-996-3-4-3-6-99-04-NON-TURBO/202409271481
......and this is the company who make those Chinese ones:
https://mgpracing.en.alibaba.com/
and the part:
https://mgpracing.en.alibaba.com/pr...tml?spm=a2700.icbuShop.41413.8.720d63eeNQxhbP
...having just spent a weekend removing my exhaust system using combination of blood,sweat , tears an angle grinder and reciprocating saw as a consequence of rust, rust and rust you have my deepest sympathy if you are taking this job on!
I am now replacing every nut and bolt from the manifold back with marine grade stainless steel which won't help me but will relieve the next owner of the misery I experienced
...my head studs were done as we're the silencer brackets it was everything in between! Even though I have had brand new Porsche manifold bolts fitted at £4 each ...I am still going to replace them with marine grade stainless steel ones this weekend....never ever be an issue again...
