15 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH996 exhaust
Leading reported evidence
Run muffler bypass as well
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
The cat definitely keeps the sound from being too much… I have a cat bypass on my 911SC and occasionally run a muffler bypass as well.
Leading evidence: 'Run muffler bypass as well' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run muffler bypass as well' (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.
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
You get the muffler bypass set on Amazon for $120 or so?
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've seen the inserts you can use, just don't know which would suit me, my mufflers were very rusty and the chrome looks better there.
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.
15 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: 20261027T031046Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Muffler delete on a 996 is loud, drones and the tone sounds like a$$. Better option is to add that little partial bypass on each muffler, AKA gundo hack. If you want it loud but with a good tone the cats have to go and tuned equal length headers added. My opinion others may vary.
My 996 has aftermarket headers , catless x-pipe and some aftermarket SS mufflers of unknown manufacturer . I bought the mufflers used and cheap . Around town she's docile , mash the throttle and she has a nice growl with no resonance and not too loud .
well I got such a good deal on the set up with nice tips,I'm going to do it.we will hear how it goes, there's a full set of mufflers and pipes for s lot more cash i saw, but can't do that one.
wanted the gundo hack but being disabled it was not for me.Theses pipes came along and my son did them. the are too loud like a 10 but I prefer an 8 .
I've seen the inserts you can use, just don't know which would suit me, my mufflers were very rusty and the chrome looks better there. I ll look at car chemisrtry
and others
You get the muffler bypass set on Amazon for $120 or so? The Fabspeed version for $700 just seemed ridiculously overpriced for a few feet of tubing and tips. The reviews for the presumably Chinese made ones on Amazon were good, and it’s not like they are some critical stressed piece. The look great and fit up well, have had it on my 996 cabriolet for about a year and ~5k miles. It sounds incredible, particularly at high RPM.
Installation is really simple… I just jacked it up enough to take off the rear wheel on each side as I put them on. It’s maybe an hour project if you take a long time about it. Would be easy to swap the factory mufflers back on if I wanted but haven’t bothered yet.
Only time it’s been a bit too much was on a ~1,500 mile road trip. I had the removable hard top on the car which didn’t quite cut the sound as much as I thought it might. For daily driving it’s great, it’s my usual commute car when the weather is decent.
The cat definitely keeps the sound from being too much… I have a cat bypass on my 911SC and occasionally run a muffler bypass as well. It sounds amazing but it is hearing damage loud if you get on it much so most of the time I have a Fabspeed SuperCup on it. The SC with cat bypass and supercup is louder than 996 with cats but with muffler bypass.
Go on the Car Chemistry website you will see what ASD is asking about . My opinion is go 3 disc's if they will physically fit . I would also wrap the perforated tube with exhaust rated fiberglass . I wish the CC discs/tubes were made of stainless steel .
I bought the car chemistry baffles, got a few emails back and forth with the owner.
I also got the fiber glass exhaust wrap to compensate the size
.Both pipes with chrome tips were 100 bucks, the baffles are cheap too I'm a bit of a miser.
I'm excited to get them on, the pipes alone are too loud for me, but you don't know until you know.
the cc baffles were too big, the size was 2.5" I sent them back got the 2" they're to small,I feel like
goldilocks, I'll order the 2.25" that seems to be the one.
I'll be visiting a Porsche shop near me for their opinion.
well I ordered the 2.25 baffles and they fit very nicely.
Drone is mostly nil,overall sound is still loud but tolerable.Car Chemistry was helpful, and responsive.
And no I couldnt measure as I only have one usable hand,thank you.//
This is a source reference. Confirm exact model applicability in the original material.