Rennlist

C2/4 Big Brake/Disc upgrade

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2 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHC2/4 Big Brake/Disc upgrade

Leading reported evidence

Install (stiffer and shorter pedal travel), and coupled

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 already have the 997 GT3 master cylinder installed (stiffer and shorter pedal travel), and coupled with the bigger Discs and uprated pads, the difference is night and day.
Original post Read captured discussion
C2/4 Big Brake/Disc upgrade

Read full discussion summary

Leading evidence: 'Install (stiffer and shorter pedal travel), and coupled' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install (stiffer and shorter pedal travel), and coupled' (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 · 2 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Install big disc (350mm)

Performed · outcome unconfirmed

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
Hi guys, I recently fitted a new big disc (350mm) to my C4 with the help of a guy (Martin996RSR over on 911.co.uk)
Original post Read captured discussion
C2/4 Big Brake/Disc upgrade

Use rear discs

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
He has created a kit that allows you to use the rear discs from either a 997 Turbo (drilled) or a Panamera (Slotted)
Original post Read captured discussion
C2/4 Big Brake/Disc upgrade

Use spacers

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
The fit and quality of the kit is superb, he basically uses spacers to place the disc in the correct position for the calipers and uses spacers on the calipers to bring them out to fit the discs.
Original post Read captured discussion
C2/4 Big Brake/Disc upgrade

Frequently discussed actions (4)

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

Install (stiffer and shorter pedal travel), and coupled

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 already have the 997 GT3 master cylinder installed (stiffer and shorter pedal travel), and coupled with the bigger Discs and uprated pads, the difference is night and day.
Original post Read captured discussion
C2/4 Big Brake/Disc upgrade

Install big disc (350mm)

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
Hi guys, I recently fitted a new big disc (350mm) to my C4 with the help of a guy (Martin996RSR over on 911.co.uk)
Original post Read captured discussion
C2/4 Big Brake/Disc upgrade

Use rear discs

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
He has created a kit that allows you to use the rear discs from either a 997 Turbo (drilled) or a Panamera (Slotted)
Original post Read captured discussion
C2/4 Big Brake/Disc upgrade

Use spacers

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
The fit and quality of the kit is superb, he basically uses spacers to place the disc in the correct position for the calipers and uses spacers on the calipers to bring them out to fit the discs.
Original post Read captured discussion
C2/4 Big Brake/Disc upgrade

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.

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

Rennlist: 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 1 / ORIGINAL POSTEROriginal post

Hi guys, I recently fitted a new big disc (350mm) to my C4 with the help of a guy (Martin996RSR over on 911.co.uk) He has created a kit that allows you to use the rear discs from either a 997 Turbo (drilled) or a Panamera (Slotted) I went for the slotted discs along with Ferodo DS2500 pads all round. The fit and quality of the kit is superb, he basically uses spacers to place the disc in the correct position for the calipers and uses spacers on the calipers to bring them out to fit the discs. The stopping power is tremendous, but more importantly the feel (even from cold) is fantastic, and as you go faster and the temperature rises, it gets better and better. I already have the 997 GT3 master cylinder installed (stiffer and shorter pedal travel), and coupled with the bigger Discs and uprated pads, the difference is night and day. I previously had DBA4000 discs with Endless MX72 pads, but found that this was not ideal for road use, as they took too long to warm up. This has really transformed the braking and it now very similar to my 996.1 GT3 if you are looking for the best bang for buck upgrade for your C2/4, this is it!

POST 2Original post

Thanks 246GTSA, I really appreciate the kind words. If anyone else is interested in a kit then please PM me. I like the spindles in the lug bolt holes for making installation easier. I think I'll include those with future kits.

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