14 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHI think I found the best X Pipe on the Market
Leading reported evidence
Run no cats
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.
Leading evidence: 'Run no cats' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run no cats' (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
I know there are a fair number of people running x-pipes here now, but very few have posted about their experiences or videos of actual driving.
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.
14 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: 20261027T140027Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Like many, when I bought my 996 I immediately switched out my stock mufflers for some very manly ebay muffler bypass pipes. They sounded great on idle & at WOT.. and they shook my kitchen cabinets when idling inside the garage. Pretty good bang for the buck in that regard and the drone was about as bad as I've ever heard
So, back on the stock mufflers went, this time with the Gundo Mod and paired with M&M's Catless X Pipe and damn does it sound heavenly. I haven't seen anyone put this catless x on their 996 and for what it's listed at on FVD's website (mid 400 range) it's almost a no brainer to try this Xpipe vs what others can wind up costing. Any cheaper option seems to be custom route but the quality of M&M's products is always top notch so you know what you're getting. The butt dyno says I've kept the same top-end power gain I had with the bypass pipes, and I feel like I have more torque around 4k having the muffler back on the car vs just cats. Plus the M96 just sings with an x-pipe.. who doesn't like that?
Onto the video! Enjoy 4 minutes of bliss
You Tube
After a week it hasn't come on, probably just jinxed myself writing that.. O2 Extensions are the only fix other than a tune
No emissions testing in florida
for now
Very nice sound! Uber manly, despite the FSU license plate, lol
I had a Fabspeed cat bypass on the GT3 for about 7 hours. It sounded amazing but despite indy's claims that because he is the smartest guy on the planet there'd be zero problems, the scary warning (I didn't even get a wimpy CEL - this was "Drive to shop Schnell!!!!!") inspired me to go back to stock setup.
Did you end up getting the mini cats that FVD have on their site? Curious if you needed a 90 degree elbow or anything to get them fitted.
Thanks for posting this BTW. I know there are a fair number of people running x-pipes here now, but very few have posted about their experiences or videos of actual driving.
Nope, still running no cats. I got the CEL code cleared from my local indy and it hasn't come on in 2k miles. If it comes back, I'll probably just re-clear the code and carry on
Sorry I meant the o2 sensor extenders to help prevent CEL. Some extenders also have a tiny integrated cat to further prevent a CEL. But clearing it each time with an OBDii scanner works too
Sorry I meant the o2 sensor extenders to help prevent CEL. Some extenders also have a tiny integrated cat to further prevent a CEL. But clearing it each time with an OBDii scanner works for a while too
This is a source reference. Confirm exact model applicability in the original material.