fullymatted.
Back to search
Rennlist

Terrible Exhaust noise...

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

Discussion summary

YOUR RESEARCHTerrible Exhaust noise...

Leading reported evidence

Check easy and common stuff first

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

check the easy and common stuff first.

Original post Read captured discussion
Terrible Exhaust noise...
Read full discussion summary

Leading evidence: 'Check easy and common stuff first' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check easy and common stuff first' (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 · 6 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.

Check easy and common stuff first

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

check the easy and common stuff first.

Original post Read captured discussion
Terrible Exhaust noise...
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.

6 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: 20261026T174436Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Gents, This is my first Porsche, but my new to me 996 3.6L makes some horrible exhaust noises below 3,000 RPMS before sounding like a Porsche should... Do they all sounds this way? It is like a very very raspy/rattley noise below 3,000 RPMS. and then from 3,000 and beyond it sounds deep and great. Just curious, but am hoping I don't have rattley cat converters?

POST 2Original post

The muffler internals can deteriorate and cause a rattle sound. Could also just be a heat shield.

POST 3 / ORIGINAL POSTEROriginal post

I had my car on a lift 2 weeks ago and my mufflers look to be in terrible shape.... I am hoping that is the issue. I have to pass emissions in the next 2 weeks before registering it. I guess I'll figure out then if it is my cats or my mufflers. Kinda embarrassing pulling out of gas stations or parking lots before hitting 3k Rpms... A Nice looking Porsche that sounds like crap lol

POST 4Original post

Bad cats, bad muffler, loose heat shields, loose license plate bracket.... check the easy and common stuff first.

POST 6Original post

It sounds like you NEED a brand new hi performance exhaust system! Go get it!

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