1 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH997 & 991 GT3 Side Muffler Bypass Pipes - Group Buy!
Leading reported evidence
Use bullet-proof reliability
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
Helical Limited United Kingdom exhaust valves are used for bullet-proof reliability.
997 & 991 GT3 Side Muffler Bypass Pipes - Group Buy!
Read full discussion summary
Leading evidence: 'Use bullet-proof reliability' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace existing smbp's allowing you' (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.
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
This design will replace our existing SMBP's allowing you to upgrade to our Long Tube Race Header design at any time in the future.
997 & 991 GT3 Side Muffler Bypass Pipes - Group Buy!
Use exact same helical valve
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 · Original poster
We chose to use Helical Valves on our 991.2 GT3 / GT3 RS track exhaust systems for their unprecedented quality - PORSCHE MOTORSPORTS AG actually uses HELICAL valves on their GT3 side mufflers and ONLY FABSPEED uses the exact same Helical valve.
997 & 991 GT3 Side Muffler Bypass Pipes - Group Buy!
Use helical valves
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 · Original poster
We chose to use Helical Valves on our 991.2 GT3 / GT3 RS track exhaust systems for their unprecedented quality - PORSCHE MOTORSPORTS AG actually uses HELICAL valves on their GT3 side mufflers and ONLY FABSPEED uses the exact same Helical valve.
997 & 991 GT3 Side Muffler Bypass Pipes - Group Buy!
Use exact same helical valve
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
We chose to use Helical Valves on our 991.2 GT3 / GT3 RS track exhaust systems for their unprecedented quality - PORSCHE MOTORSPORTS AG actually uses HELICAL valves on their GT3 side mufflers and ONLY FABSPEED uses the exact same Helical valve.
997 & 991 GT3 Side Muffler Bypass Pipes - Group Buy!
Use helical valves
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
We chose to use Helical Valves on our 991.2 GT3 / GT3 RS track exhaust systems for their unprecedented quality - PORSCHE MOTORSPORTS AG actually uses HELICAL valves on their GT3 side mufflers and ONLY FABSPEED uses the exact same Helical valve.
997 & 991 GT3 Side Muffler Bypass Pipes - Group Buy!
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.
1 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Pelican Parts: 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
We have what you want to GAIN MORE POWER & GREAT SOUND in your GT3. Our Valved and Non-valved Side Muffler Bypass pipes are the industry's best solution for 997-991.2 GT3 and RS models. Complete bolt-on, no Check engine lights, and retains full compatibility to your factory PSE system! Due to extremely high demand, we have a few sets in stock ready to ship! Take a look and listen below to some of the product details and PM me or reach out directly to take advantage of this limited-time offer!
We will be limiting this group buy to 10 spots, all receiving 10% off!
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FEATURES:
Fits all Porsche 991 GT3 / GT3 RS / 911R vehicles worldwide 2014-2019
Highest quality OEM Porsche Ag. Helical Limited United Kingdom exhaust valves are used for bullet-proof reliability.
NO cheap 100% guaranteed to fail, break, vibrate and melt Chinese exhaust valves like competitors' cheap systems
(Fun Fact: Helical aerospace valves cost $375 for each (two required) versus cheap $35 Asian valves. Caveat Emptor.)
Includes O2 bungs and plugs at no extra charge.
Saves a massive 41+ lbs 18.6 kg from the rear of the vehicle
CAT-BACK Emissions legal. Bolts onto OEM Porsche catalytic converters
Replicates aggressive CUP car sound for the street. Not too loud
Increased power +9HP versus stock OEM heavy restrictive dual side mufflers.
14-16ga T304 Stainless Steel construction
Retains Sport Button PSE functionality. PSE = Porsche sport exhaust
Simple bolt-on installation- remove rear left and Right side mufflers and install these Works of Art. .
All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty
HELICAL VALVES:
We chose to use Helical Valves on our 991.2 GT3 / GT3 RS track exhaust systems for their unprecedented quality - PORSCHE MOTORSPORTS AG actually uses HELICAL valves on their GT3 side mufflers and ONLY FABSPEED uses the exact same Helical valve. Same part #, same bulletproof quality. which have been proven by many OEM manufacturers such as McLaren, Ferrari, Lamborghini, Pagani, and many more. Helical valves are an integral part of our Side Muffler Bypass pipes, opening and closing with precision to control the gas flow and optimize engine back pressure for improved performance. Helical's extensive experience in high-volume OEM automotive applications has led to standard features such as an extremely durable pneumatic actuator, precision flat sealing faces inside the valve, stiffening ribs, and Ultra high-temperature high-temperature bearings at both ends of the butterfly spindle. Helical is an Aerospace Company that also makes exhaust components. Fabspeed Motorsport USA is the USA's exclusive importer buyer.
O2 BUNGS:
We relocated the O2 bungs from the collector of the headers to the Side Muffler Bypass Pipes in order to maintain factory-like functionality with our Long Tube Competition Race Headers - allowing them to read all cylinders while maximizing the performance of the collector. This design will replace our existing SMBP's allowing you to upgrade to our Long Tube Race Header design at any time in the future. Extra oxygen sensor ports also allow Data Acquisition at any time. Another value-added feature only offered from Fabspeed.
This is a source reference. Confirm exact model applicability in the original material.
