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Replacing Exhaust Systems

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

Discussion summary

YOUR RESEARCHReplacing Exhaust Systems

Leading reported evidence

Replace by the dealer if they don't make it

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

Your cats are supposed to last 8 years and they should be replaced by the dealer if they don't make it.

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Replacing Exhaust Systems
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Leading evidence: 'Replace by the dealer if they don't make it' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace by the dealer if they don't make it' (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.

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1 matching discussions · 6 captured posts examined · 0 partial discussions

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Replace cats

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

I have read numerous forum responses about modifying existing 3.6 exhaust, my mechanic is suggesting replacing the cats with fabspeed cats for $1500 or could do the whole fabspeed system for $5k.

Original post Read captured discussion
Replacing Exhaust Systems

Suggestion

If I had to replace my cats on my own dime, I'd probably go with Fabspeeds.

Original post Read captured discussion
Replacing Exhaust Systems
Frequently discussed actions (2)

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

Replace by the dealer if they don't make it

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

Your cats are supposed to last 8 years and they should be replaced by the dealer if they don't make it.

Original post Read captured discussion
Replacing Exhaust Systems

Replace cats

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

I have read numerous forum responses about modifying existing 3.6 exhaust, my mechanic is suggesting replacing the cats with fabspeed cats for $1500 or could do the whole fabspeed system for $5k.

Original post Read captured discussion
Replacing Exhaust Systems

Suggestion

If I had to replace my cats on my own dime, I'd probably go with Fabspeeds.

Original post Read captured discussion
Replacing Exhaust Systems
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

My right cats are going out on my 03' 996 C2 Cab. Ideally I would like to address the cats, improve the sound with a new exhaust and gain any additional HP and weight loss. I have read numerous forum responses about modifying existing 3.6 exhaust, my mechanic is suggesting replacing the cats with fabspeed cats for $1500 or could do the whole fabspeed system for $5k. I have also looked at the Fister sport muffler for $225. I am also concerned about droning that I have seen some complaints about as well as don't want to go too loud while still obtaining the performance sound above 4,000 rpm. Don't want to loose torque either. Ideally I would like to spend@ $1,000-$1,500 and get the maximum value. So might you suggest as the right combination.

POST 2Original post

You might check your in-service date. Your cats are supposed to last 8 years and they should be replaced by the dealer if they don't make it. That will give you maximum value right there There are a number of threads on this, so do a search if you have more questions. Or maybe Ed or Tim will dig around for you, lol. -td

POST 3Original post

My Fisters don't drone at all. If I had to replace my cats on my own dime, I'd probably go with Fabspeeds.

POST 6Original post

[QUOTE=redridge;7974699]I love my FVD sports cats.... +1 on FVD

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