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Muffler Advice Please! - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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YOUR RESEARCHMuffler Advice Please! - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Leading reported evidence

Install same modification and have passed their emission testing

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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

People in California have commented that they have installed the same modification and have passed their emission testing.

Muffler Advice Please! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed work

Check w/ woody

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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 w/ Woody on the "Parts for Sale" area of this forum.

Muffler Advice Please! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary

Leading evidence: 'Install same modification and have passed their emission testing' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check w/ woody' (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 · 20 captured posts examined · 1 partial discussions

Compare 4 other evidence results

Install top speed pro 1 performance muffler purchased

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 installed the Top Speed Pro 1 Performance muffler purchased from E-bay.

Muffler Advice Please! - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Check w/ woody

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 w/ Woody on the "Parts for Sale" area of this forum.

Muffler Advice Please! - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace muffler

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

Time to replace the muffler on my 2000 Boxster (non-S, 2.7L).

Muffler Advice Please! - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Test failures every time

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

Deleting the single cat on an early Boxster will result in emissions test failures every time.

Muffler Advice Please! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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 w/ woody

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 w/ Woody on the "Parts for Sale" area of this forum.

Muffler Advice Please! - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Install same modification and have passed their emission testing

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

People in California have commented that they have installed the same modification and have passed their emission testing.

Muffler Advice Please! - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Install top speed pro 1 performance muffler purchased

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 installed the Top Speed Pro 1 Performance muffler purchased from E-bay.

Muffler Advice Please! - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace muffler

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

Time to replace the muffler on my 2000 Boxster (non-S, 2.7L).

Muffler Advice Please! - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Test failures every time

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

Deleting the single cat on an early Boxster will result in emissions test failures every time.

Muffler Advice Please! - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Test here in road island

No successful repair reported for this finding.

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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

We have pretty strict testing here in Road Island.

Muffler Advice Please! - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Use tapatalk

No successful repair reported for this finding.

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Reported fixes
0
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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

Sent from my iPad using Tapatalk

Muffler Advice Please! - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.

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

  • 986Forum: 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: 20261026T205155Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Time to replace the muffler on my 2000 Boxster (non-S, 2.7L). No money left to do the rest of the exhaust system as I just about blew my entire budget on IMS, RMS, clutch, wheel bearings....the list goes on. But...thanks to a loose baffle, looks like I need a new muffler, and I'd like to do something other than OEM. Here's the big issue: I live in a community with some pretty strict noise ordinances. I also do a little highway driving from time to time and I don't think my wife and I want to have to scream at each other to be heard on a road trip. So, in short, looking for something with a pleasing roar when I'm on the throttle, a nice little rumble on idle, and fairly quiet at speed. Any recommendations?

POST 2Original post

I installed the Top Speed Pro 1 Performance muffler purchased from E-bay. It took a little modification to the mounting bracket to get it to hang centered; but for $300.00 it was well worth it. I love the sound and it's not too loud.

POST 3 / ORIGINAL POSTEROriginal post

Before I posted this, I did a search on this forum and found some older posts on exhaust systems from a few years ago, and was hoping for some updated info. Interestingly enough, there was some negative info on the Top Speed muffler in some of those old posts. So...interesting. How long have you had the Top Speed?

POST 4Original post

I did the "crios mod" on mine a few years ago, and it made a nice change. A little deeper, and louder at low speed/low RPM. Above 3500rpm or so, and it's all induction noise anyways. You've pulled out your snorkel already, right? http://986forum.com/forums/diy-project-guides/19770-diy-exhaust-mod-%96-gain-10-hp.html ^ btw, zero HP different here, it's just a silly title I've got some cat bypass pipes I'm putting on next, to get a little more volume and rasp.

POST 5 / ORIGINAL POSTEROriginal post

I have not done the desnorkel yet. Sounds to me like I have a loose baffle in the muffler, so I don't think the Crios mod will do anything for me except add a nice low resonance to the rattle sound.

POST 6Original post

Do the 'oettle' bypass. Take it to a fabricator and ask them to drill a hole in each pipe that goes into the muffler, and a hole in the tailpipe in each side, and just two pipes joining them up. The result is a sound that sounds exactly like the Porsche Sports Exhaust (due to it being the same technique of bypassing the muffler), original looks, and being VERY cheap to do. It cost me £130 GBP, all in. Before: After: And the real PSE: Notice the similarities? This is mine: https://www.youtube.com/watch?v=Thocwey5K9w https://www.youtube.com/watch?v=N71oYX-ejZk I'd recommend it to anyone The best thing about it is that it's eliminated the drone you get at certain revs on the motorway. So it makes the motorway journeys more comfortable, while making it sound incredible. Look into it!

POST 7Original post

That is cool, Ger. It seems similar to the the other PSE - Pedro Sports Exhaust. Sent from my iPad using Tapatalk

POST 8Original post

00004420012 - ROW-version (PSE shown in photo) = bit louder than standard 00004420020 - US-version = even louder (looks completely different, actually like a regular S muffler) Lots of Germans tried to get their hands on the US-version. I will try to snatch the ROW-version (they call them Salzstreuer=salt shaker over here ), as I like the Sebring chrome look of it @geraintthomas: Sounds really nice, well done.

POST 9 / ORIGINAL POSTEROriginal post

Ger, that is very, very interesting. Unfortunately, I think my current muffler is toast due to a loose baffle. So what I'm looking for is a non-oem muffler that won't break my bank account but will actually provide a bit of a sound improvement. Here's the thing...there just isn't very much out there. It seems my choice is a $300 ebay muffler or a complete system for close to 10x that from Fabspeed. I know price does not always equal quality, but I'm understandably concerned about that huge price spread. I'd go with the ebay unit if I knew it was going to hold up over time.

POST 10Original post

Check w/ Woody on the "Parts for Sale" area of this forum. His screen name is Itsnotanova. He handles lots of parts and is very reasonable. I have an 04S and I just did the cat delete pipes on mine. Adds a rumble but no drone at highway speeds. I kept the stock muffler. http://986forum.com/forums/diy-project-guides/60343-new-cat-delete-pipes.html

POST 11 / ORIGINAL POSTEROriginal post

What will cat deletes do for emissions? We have pretty strict testing here in Road Island.

POST 12Original post

Quotes source post: 487901

I cannot comment for your car and your state, but in PA we have strict emission testing plus the cat I removed was the secondary cat, not the primary attached to the header. People in California have commented that they have installed the same modification and have passed their emission testing. In my situation, I kept my secondary pipes in the event that I do fail and will reinstall them.

POST 13Original post

The cat delete pipes will not affect emissions because you will still have a cat in each of your exhaust manifolds. As for the muffler, look on craigslist. You can probably find a used one for around $100 locally. Then you can do any of the mods talked about on here. A used muffler that has to be shipped will cost because of its weight. I have a used one in great shape that I would sell for $100, but shipping it would most likely cost the same.

POST 14 / ORIGINAL POSTEROriginal post

Sounds like the best idea yet. There really isn't much out there. Maybe I should start my own business. I thought it would be easy to get an aftermarket cat back that was lighter than the 40 lb stock unit with better sound. Sheesh.

POST 15Original post

Quotes source post: 487913

You can get that, but you will also get a muffler that drones at 3000 RPM. It has been said that the drone goes away with the cat delete pipes. Then of course the cost goes up to closer to $500. So if you don't mind the stock mufflers weight, then a used one that you can mod will end up costing you less. I have done the Crios mod to my stock muffler. Small sound gain and no drone. My buddy has a stock muffler with the bypass mod. Huge sound gain and no drone. In the end I guess it comes down to how much you want to spend.

POST 16Original post

Quotes source post: 487913

Not sure about the fit, but I have a very low miles stock muffler from a 2001 S model you can have for $300. I'm less than an hour drive from Providence

POST 17Original post

Quotes source posts: 487894, 487904

No issues in California as long as they don't do a visual inspection. Hey BRAN.. I am not sure you're correct. I believe that the 00004420020 is for 2003 and 2004 Boxsters. It doesn't have those large wrap around pipes due to the bumpers on those year cars. The 00004420012 one is for 2002 and earlier cars. I bought (stole?) a PSE off of eBay for $125 shipped. It was poorly listed.

POST 18 / ORIGINAL POSTEROriginal post

Not to muddy the waters, but how long do the cats last on these cars? Reason I ask, if my cats are going to give up the ghost soon, I'm probably better off waiting until the bank account recovers and go with the full system, like Fabspeed (over 2 large...ouch). Coming up on 70k miles soon. How I wish I could find a full OEM sport exhaust on ebay for $125.

POST 19Original post

I have the Top Speed. Not too much drone. It is quite louder than stock. But hey it's a sports car!

POST 20Original post

Quotes source posts: 487897, 487911

For completeness, early (97-99) Boxster's only have a single cat that is installed down stream of the exhaust header and before the muffler (not integrated with the exhaust header). Deleting the single cat on an early Boxster will result in emissions test failures every time. Get the TopSpeed or eBay muffler. They are durable, sound great, and are an excellent deal compared to much higher priced alternatives.

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