fullymatted.
Back to search
Rennlist

Fabspeed MaxFlows - An impression

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

Discussion summary

YOUR RESEARCHFabspeed MaxFlows - An impression

Leading reported evidence

Replace (i drove it very carefully)

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

Didnt tell the wife I had fitted them and she did not pick up on the change (I drove it very carefully).

Fabspeed MaxFlows - An impression
Read full discussion summary

Leading evidence: 'Replace (i drove it very carefully)' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace (i drove it very carefully)' (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 · 32 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Replace tone considerably

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

headers definately will pump up the volume, but will change the tone considerably.

Fabspeed MaxFlows - An impression

Use imo

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

Bypass pipes are too loud for street use imo.

Fabspeed MaxFlows - An impression
Frequently discussed actions (3)

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

Replace (i drove it very carefully)

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

Didnt tell the wife I had fitted them and she did not pick up on the change (I drove it very carefully).

Fabspeed MaxFlows - An impression

Replace tone considerably

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

headers definately will pump up the volume, but will change the tone considerably.

Fabspeed MaxFlows - An impression

Use imo

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

Bypass pipes are too loud for street use imo.

Fabspeed MaxFlows - An impression
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.

32 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: 20261026T120458Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Got the Fabspeeds put on Friday afternoon, and drove the car quite a bit over the weekend. Sport exhaust is always a big topic on the board, so I thought I'd pipe in with some thoughts. I upgraded from a stock 996 C4S, which felt waaaay too tame, considering what a mean looking ride it is. Chris was such a proponent of the Fabs on the C4S, I took a shot. They may a huge difference, but not as extreme as I thought. There's a much meaner bark when you start the car, and it sounds loud and mean when you rev it. In the car, with the windows down and the sunroof open, you feel like you're driving a GT3 or something - it's got a super racy sound, much much louder than stock. With the windows up, it's definately still there in the back, you can here the sound every time you give it gas. On the freeway, it sounds stock until you give it gas - no resonance, no problems at all. All in all, a good mod - about $1200 installed, and it gives the car, both inside and outside, more of an "aural presence" - and it makes driving around town more involving. Plus, they're very high quality - solild and very well built, so I think they'll wear welll. And you can see the chrome cans behind the exhaust tips - very cool.

POST 2Original post

I like the Fabs also but unfortunately unless you clean them a lot, the cool looking chrome cans will turn a light brown color in no time. Enjoy!

POST 3Original post

Thanks for the review! I've been contemplating going with Fabspeed since the day I bought the car. It's nice to hear a fellow C4S owner speak highly of them.

POST 4Original post

I am wondering if the maxflo from fabspeed will be loud enough for me..

POST 5 / ORIGINAL POSTEROriginal post

Try 'em - they're pretty loud. If you need more after that, add the bypass pipes. That's the whole point - for $1000, it's a fantastic mod - and you can always make it more extreme if need be. It sounds so good when you start the car...

POST 6Original post

You'll like 'em don't worry. Bypass pipes are too loud for street use imo.

POST 8Original post

Yep I bought the bypass pipes and had em on the car for, oh, i'd say ten miles before they came off. My neighbours were relieved...

POST 9 / ORIGINAL POSTEROriginal post

Hahaha - Oh yeah, sure. But the car DOES sound like a Le Mans car - the sound is really growing on me - it keeps getting better the more I drive it.

POST 10Original post

recently purchased a '99 996 C2 and have been thinking of adding the fabspeed exhaust. have listened to the available clips online but would like to hear the exhaust in person. anyone on long island with a fabspeed exhaust willing to have me come over for a listen? if so, please email me at: [email removed] thhhhxxx!!!!!!

POST 11Original post

have them on my GT3 great sound. I have the by pass pipes and they are way loud. I use them on the track sometimes just for fun. I have never felt any performance improvements.

POST 14Original post

I agree with nutbeem 100%. They behave exactly as he described. Didnt tell the wife I had fitted them and she did not pick up on the change (I drove it very carefully). But when you let it rip the sound just keeps getting better. The car now sounds like it looks (mean and masculine). No Porsche should be without a fabspeed. I got mine from someone who removed it after two weeks 'cos he thought it was too loud. I put it on based on the fabspeed soundclip and its the best thing I have ever done. The guys at the Porsche dealer who fitted it for me could not understand how anyone could not like it or find it too loud. They are right. Just do it!

POST 15Original post

I did the whole Fabspeed kit - Headers, Max Flow - Love It - the Sound is simply too dam much ! Daily I smile. Enjoy amigo -

POST 16Original post

The fabspeeds certainly sound good, but I think as far as sports car exhausts go they are pretty quiet. My C4S with fabs sounds stock to compared to my neighbors NSX with exhaust, or my old M Coupe. You think adding fabspeed sport cats will help make it louder? Muffler bypass are definitely too loud, but I wouldnt mind adding a little more growl.

POST 17Original post

headers definately will pump up the volume, but will change the tone considerably.

POST 18Original post

that is sooo odd because i couldn't tell if there is a tonal and volume difference. when i did the mod i didn't have the supercharger. now throwing a SC on does make a big difference.

POST 19Original post

I didn't notice any significant sound difference with headers, pulled better.

POST 21Original post

I wish my Fabspeeds were a bit louder as well. I may just end up with the bypass pipes even though everyone seems to think they are disturbingly loud. I drove a car with the bypass pipes and it was a great experience. I am not sure if living with them everyday would change my mind. Also, I would think that the cabs are louder in the cockpit than the coupes. I have a coupe, does anyone out there have bypass pipes with the coupe and how do you like them?

POST 22Original post

So what's the deal: do they resonate or don't they? I've read other people's comments saying they could hear the Fabs resonate in the cabin. Blasting around town or on canyon runs with the windows down would be great, but sometimes I want peace on quite with the windows up on the highway, and that is where I worry about a resonating exhaust. I want a mean sounding exhaust and would like to lose some weight off the back-end, so PSE is out. Not that PSE sounds bad or anything, I just want a lighter exhaust.

POST 23 / ORIGINAL POSTEROriginal post

No resonance - at speed on the freeway, they sound stock until you stand on it...

POST 24Original post

so an exhaust makes a difference on the 3.6L cars as well? I thought the 3.6L cars were louder than the 3.4L to begin with?

POST 25 / ORIGINAL POSTEROriginal post

They are, but they're still too tame for my taste. Pump up the volume!

POST 26Original post

Sounds like you might want to give GHL a call. They are not as loud as Fabspeeds, but there is no resonance.

POST 28Original post

I completely agree. There is no hint of resonance. Its the least resonating exhaust Ive heard on ANY car.

POST 29Original post

resonance is soooo subjective. some think there is no resonance otheres, like me, think there is resonance. when you are lugging it in a higher gear there is slight to moderate resonance in the cabin. when the engine is on song, it goes away. going from PSE to fabspeed i DEFINITELY noticed the resonance but i have gotten used to it. i still say PSE is THE sound for a porsche. raspy and mean sounding but too bad it's heavy.

POST 30Original post

Is there any exhaust that is between a fab maxflo & fab exhaust bypass in terms of sound? Maxflo might be kinda tame, but the bypass may be too loud... I have never heard either in person tho...

POST 31Original post

although not exactly between the maxflows and bypass in loudness, PSE is close. it is louder then the maxflows.

POST 32Original post

This is exactly why I did the $30.00 muffler bypass. To see if the Fabspeed muffler bypass would be too loud for me. From my co-workers today, the overwhelming opinion of the bypass pipes is....... Sounds like a dump truck. That is untill you really get on it. I'm glad I ordered the Fab maxflows. For me, there is just to much resonance or droning at highway speeds without mufflers.

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