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Got stock mufflers, want fabspeed?

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

Discussion summary

YOUR RESEARCHGot stock mufflers, want fabspeed?

Leading reported evidence

Replace tips

Performed · outcome unconfirmed

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 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

My car was only about 18 months old when I first removed my mufflers and swapped the tips to the modded mufflers, so there was not much rust on them, at least not to the point where they were crusty.

Got stock mufflers, want fabspeed?
Frequently discussed work

Check order

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 order

Got stock mufflers, want fabspeed?
Read full discussion summary

Leading evidence: 'Replace tips' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check order' (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.

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1 matching discussions · 31 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Use alternative clamps

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

I used the alternative clamps from Fabspeed.

Got stock mufflers, want fabspeed?

Use two screwdrivers

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

I used two screwdrivers to remove them but snap ring pliers makes it much easier.

Got stock mufflers, want fabspeed?

Check order

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 order

Got stock mufflers, want fabspeed?

Set than the ones i am purchasing

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

This is a separate set than the ones I am purchasing.

Got stock mufflers, want fabspeed?
Frequently discussed actions (7)

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

Check order

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 order

Got stock mufflers, want fabspeed?

Replace tips

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

My car was only about 18 months old when I first removed my mufflers and swapped the tips to the modded mufflers, so there was not much rust on them, at least not to the point where they were crusty.

Got stock mufflers, want fabspeed?

Set than the ones i am purchasing

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

This is a separate set than the ones I am purchasing.

Got stock mufflers, want fabspeed?

Use alternative clamps

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

I used the alternative clamps from Fabspeed.

Got stock mufflers, want fabspeed?

Use oem tips

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

mufflers will fit the c4s, you just have to re-use the oem tips.

Got stock mufflers, want fabspeed?

Use oxy/acetylene

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

So much to the point that I had to use oxy/acetylene to back the nut off the clamp.

Got stock mufflers, want fabspeed?

Use two screwdrivers

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

I used two screwdrivers to remove them but snap ring pliers makes it much easier.

Got stock mufflers, want fabspeed?
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.

31 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: 20261026T105141Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

As the title says, my car has a great set of Fabspeed mufflers, I'm looking to go to stock. Anybody interested in a trade? My car's a 99, any 99 through 01 muffler will do. Thanks

POST 2Original post

Too bad it doesn't fit on a C4S. I would have gonne for it!

POST 3Original post

Quotes source post: 6191129

What makes you say they won't fit a C4S? I know the stock cans for a C4S are a different part number than the C2 mufflers, but the cans are basically the same. Also, the Fabspeed site states that they fit all 996 models.

POST 4Original post

Quotes source post: 6191129

mufflers will fit the c4s, you just have to re-use the oem tips.

POST 5Original post

Darin's stage II mufflers supposedly match the sound of fabspeeds. The difference is weight between the two.

POST 6Original post

Swapping with a 2003 doesn't work? Why do you want to change out?

POST 7Original post

Wait, why do you want to downgrade your 911? This does not compute... Did you look at these? I was going to pick them up on your behalf. This is a separate set than the ones I am purchasing. https://rennlist.com/forums/for-sale...c4-canada.html

POST 8Original post

Lordy I'm tempted. Guess I've got to member up if I want to do any trading, don't I? But yeah, why the urge to go stock?

POST 9Original post

Quotes source post: 6191185

Who is Darin? If you are referring to the "J" pipe connection between the intake and exhaust, I have that mod in my cans. Are you saying it would sound just about as good? I thought Fabspeed would be louder. How much weight reduction?

POST 11Original post

Thanks for the info guys. Ahmet if they fit I would be interested, but my stock exhaust was modified here by Pfaff Porsche with mark || (J pipe from intake to exhaust). It sounds louder from 3000 RPM and up, and quite civilized in low RPMs.

POST 12 / ORIGINAL POSTEROriginal post

Any/everyone, just PM me if you've got something. Local preferred obviously (but I won't hold my breath). If you're not local, I would want your stock muffler before shipping mine out. It may be easier for me to find a used stock one, then sell my fabspeed I suppose. Dan, I've PM'd that guy after seeing they weren't the ones you were buying. Shipping from Canada's not going to be cheap, but I'm trying. And I know you're being sarcastic with the "why downgrade" thing, but it really is a downgrade in some aspects. I do think the fabspeeds flow better, they certainly look nicer, and won't rust. They're also lighter, the only problem is, they're too loud for me...

POST 14Original post

Quotes source post: 6191508

Darin is "FisterD" Fabspeeds are lighter than stock mufflers. I don't know the actual weight savings going to fabspeeds. http://www.6speedonline.com/forums/9...t-drone-2.html

POST 16Original post

Quotes source post: 6191572

No problem, go ahead. Good luck

POST 17Original post

Quotes source post: 6191590

LOL just messin with ya, may the deal work out for the OP and who ever ends up working with him

POST 18Original post

Quotes source post: 6191185

Yeah, the Fabspeeds are much lighter than stock. Any weight you can get off the rear is good, added benefit there.

POST 19Original post

Quotes source post: 6191661

yes, but how much weight?

POST 20Original post

Quotes source post: 6191668

I never weighed them myself, but the stock cans must be close to 30lbs each? The stock cans are really bricks. I'd take a wag that Fabspeed is about 10lbs lighter each. So net-net must be close to ~20lbs total weight savings off your rear bumper.

POST 21 / ORIGINAL POSTEROriginal post

Replied to. I think I might be better off finding a set of stock mufflers and doing the swap then selling the fabspeeds once that's done, unless something really convenient pops up...

POST 23Original post

Quotes source post: 6191152

Just how hard is it to get the stop tips off? I loosened bolts and applied some heat, but couldn't budge them - wasn't sure and didn't push it

POST 24Original post

Take the tips off at the C-clamp where the tip pipe is attached to the muffler. The C-clamp is tough to spread open to get the tips off. I used two screwdrivers to remove them but snap ring pliers makes it much easier.

POST 25Original post

Thanks Tim - I applied heat to spread the C clip to no avail, but since I know they'll come off, I won't wimp out this time

POST 26Original post

Did you remove the bolt that holds the ends together? Once that bolt has been loosened the clamp should turn on relatively freely on the pipes. You will probably have to remove the bolt completely to get the clamps off. If you don't have snap ring pliers you can use two screw drivers and insert them into the clamp as shown in pic #2 and then push the handles of the screw drivers toward each other to spread the clamp enough to get it off. Just be careful that you do not distort the ends of the clamp too much because that will make it a bit more difficult to get the bolt back through the clamp ends.

POST 27Original post

yea, and uhhhhh PLEASE WEAR SAFETY GLASSES Rust from exhaust parts gets into eyes very easy. Getting it out requires a small nylon brush on the end of a little battery powered Dremel type tool........and dont ask how many people it takes to hold you down in the chair as they are yelling "stop moving your head" at you

POST 28Original post

My car was only about 18 months old when I first removed my mufflers and swapped the tips to the modded mufflers, so there was not much rust on them, at least not to the point where they were crusty. I guess if your car is 6 to 8 years old and the tips have never been removed, the clamps may be quite rusty.

POST 29Original post

I learned this on my old 71' CJ5 - but the memory is very vivid for me, as a precautionary measure i always wear safety glasses after I get stuff in my eyes now

POST 30Original post

I just did mine a month ago and prior to extraction I had 36K and one was pretty darn stubborn. So much to the point that I had to use oxy/acetylene to back the nut off the clamp. Needless to say to get the clamp off, we mangled it pretty badly. They can be stubborn so be willing to sacrifice the clamp. On the bright side they are fairly cheap to replace at the steelership (less than $20).

POST 31Original post

Quotes source post: 6196432

Mine came off pretty easy for 42K miles---with a Sawzall I used the alternative clamps from Fabspeed.

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