fullymatted.
Back to search
Rennlist

Fabspeed Supercup vs. NHP muffler bypass

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

Discussion summary

YOUR RESEARCHFabspeed Supercup vs. NHP muffler bypass

Leading reported evidence

Run straight pipes

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'm running straight pipes with a Supertrap set-up.

Fabspeed Supercup vs. NHP muffler bypass
Read full discussion summary

Leading evidence: 'Run straight pipes' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run straight pipes' (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 · 15 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Test with/without mufflers and i can't go back

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

I also did a back to back test with/without mufflers and I can't go back to stock.

Fabspeed Supercup vs. NHP muffler bypass

Use some new motor mounts

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

It looks like terrencetong could use some new motor mounts

Fabspeed Supercup vs. NHP muffler bypass
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.

Run straight pipes

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'm running straight pipes with a Supertrap set-up.

Fabspeed Supercup vs. NHP muffler bypass

Test with/without mufflers and i can't go back

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

I also did a back to back test with/without mufflers and I can't go back to stock.

Fabspeed Supercup vs. NHP muffler bypass

Use some new motor mounts

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

It looks like terrencetong could use some new motor mounts

Fabspeed Supercup vs. NHP muffler bypass
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.

15 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: 20261027T182539Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hey guys just picked up my first Porsche and I'm coming from a straight piped bimmer. Really would like a loud exhaust to bring the 911 to life. Ive read lots of exhaust threads and was wondering what everyones opinion is on the Supercup mufflers vs NHP muffler bypass pipes.

POST 2Original post

A straight-pipe front-engine car has a LOT more pipe to muffle noise than a rear-engine - you might not like it as much on the 996. I have chambered pipes on my 'Vette, and it's still quieter than my Fister cans on the 911. The Fister exhaust is more than adequate to fill my sound needs - any louder, and the neighbors would probably burn my house down.

POST 3 / ORIGINAL POSTEROriginal post

Quotes source post: 12540699

Makes sense! Will probably stay with a muffler then instead of going with the full bypass

POST 4Original post

There are a couple of guys who have muffler deletes and swear by it - but I can't understand how it's tolerable. I loves me some good engine noise, and I'm an idiot every time I go through a tunnel, but...

POST 5Original post

I love the sound of a muffler bypass in the 996... at idle. After that it's a super loud fart can civic to me.

POST 6Original post

I'm running straight pipes with a Supertrap set-up. I put 6 or 8 spacers on - and it's loud, but the Supertrap quiets it enough that (knock wood) I don't get stopped, but get lots of thumbs-up and asking what I'm running. (And yes, 5CHN3LL, it's just barely tolerable!) But on the track it's raceday nirvana!! Take off the spacers and blast - at full song, it's glorious! I've had guys in cup cars tell me how much they like the sound. But if it were strictly a street car....I'd stick with Fister...

POST 7Original post

this is the video of my supercup and i can hardly tolerate it. At some point, i will probably put back on my gundo hack exhaust 996 Porsche 911 Carrera - Fabspeed Supercup Exhaust - YouTube

POST 8 / ORIGINAL POSTEROriginal post

Quotes source post: 12542819

Too loud? Or is the drone really bad?

POST 9Original post

Wow, it's nice to hear people being honest about loud exhaust. Generally, folks running straight pipes will swear it's the best thing ever...all the way to the audiologist.

POST 10Original post

It looks like terrencetong could use some new motor mounts

POST 11Original post

Quotes source posts: 12542902, 12543293

Both. It drones really bad for anything under 3k rpm. It kinda forces you to go fast lol I barely hit 6th gear on the hwy anymore just because of the drone yeah definitely! They are on my to-do list next spring since the season is almost over

POST 12Original post

I've had them on for about a year and I love them. At first they were way too loud, but now I feel like they're too quiet. I also did a back to back test with/without mufflers and I can't go back to stock.

POST 13Original post

^ This is because you have permanently damaged your hearing. I feel for you, and I'll get your GoFundMe page set up sometime soon, bruh. Don't become a statistic. Don't do straight pipes.

POST 14Original post

lol yea maybe you're right. I feel like it might be a mix of that and the ecu adapting to not having mufflers. Either way I'm one of the guys that swears by it...They shed about 50lbs off the rear and feels a whole lot faster according to my butt dyno.

POST 15Original post

I thought it felt slower with the cans off. Not to mention anything over about 2% throttle and everyone in Jasper County thinks you're racing... and a ricer.

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