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Pelican Parts

FS: Factory X51 Headers

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9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHFS: Factory X51 Headers

Leading reported evidence

Use larger primaries

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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.

Suggestion · Original poster

The X51 manifolds have the larger ports and also use larger primaries.

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FS: Factory X51 Headers
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Leading evidence: 'Use larger primaries' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use larger primaries' (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 · 9 captured posts examined · 0 partial discussions

Frequently discussed actions (1)

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

Use larger primaries

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 X51 manifolds have the larger ports and also use larger primaries.

Original post Read captured discussion
FS: Factory X51 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.

9 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: 20261026T200546Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I have a brand new set of factory X-51 headers for a 3.6L engine. These were removed off of my X51 engine prior to installation in my Boxster. Great upgrade for any 3.4 or 3.6L engine. A search of the retail price list shows the factory list price is $1800/pair. Asking $500/pair. Todd

POST 2Original post

What is the shipping cost to PA, 19401? Thanks!

POST 4Original post

Do you have photos? And you are sure they will fit a '99 C4 3.4, correct?

POST 5 / ORIGINAL POSTEROriginal post

Here are some pics stock 3.4 manifolds are on the left, 3.6 in the middle and the X51 are on the right. You can see that all 3 are very similar. The only difference between the 3.4 and 3.6 manifolds is the larger port opening. The X51 manifolds have the larger ports and also use larger primaries. Todd

POST 7 / ORIGINAL POSTEROriginal post

Paypal, cheque, money order, really any way you want. Send me an email at tholyoak-at-everestkc-dot-net and we can work it out. Todd

POST 8Original post

Todd, Look for an email from [email removed] . Thanks, Greg

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