19 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHX post-FS-996/997 fabspeed header, IPD plenum, CAI & more
Leading reported evidence
Check im out of mod money
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.
X post-FS-996/997 fabspeed header, IPD plenum, CAI & more
Read full discussion summary
Leading evidence: 'Check im out of mod money' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check im out of mod money' (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 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.
X post-FS-996/997 fabspeed header, IPD plenum, CAI & more
Use 996 brake lines approx 20k miles-$40
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.
X post-FS-996/997 fabspeed header, IPD plenum, CAI & more
Reset after each one
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.
X post-FS-996/997 fabspeed header, IPD plenum, CAI & more
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.
19 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: 20261027T022239Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
https://rennlist.com/forums/for-sale...-and-more.html
Item 1 to 3 used for one summer for approximate 4000 miles
1. IPD Plenum for 996 & 997.1 -SOLD
http://rss.rpmware.com/ipd_plenums/i.../i-238164.aspx
2. Fabspeed CAI with BMC filter for 996 & 997.1- $sold
http://www.fabspeed.com/996_GT3.html
3. Fabspeed sport headers for 996 & 997.1 - SOLD
http://www.fabspeed.com/996_GT3.html
4. TRG rear adjustable toelinks, 5K miles- sold
http://store.trgparts.com/toelinks-t...997-p4985.aspx
5. AP front adjustable droplinks-Brand new-$150
6. 997 GT3 front brake ducts can be used in 996 (997-341-484-92)-improve air flow to front rotors -SOLD.
7. Used 996 brake lines approx 20K miles-$40
I would say they are at least 1/3 bigger than stock.... I have the gt3rs ducts and was gonna pull them out and put these on for the street.... but its been on there forever so might as well put them to use..
they add up quick... just gonna enjoy the ride the way it is for awhile.
That is the box I received from RSS. Please look at 2nd pic, on the plenum itself, it shows for 996 & 997. I used it on my 03 4S and it fitted perfectly.
I am going to go out on a limb that the Plenum makes a little bit of difference on its own but is a good mod with other mods combined; intake, headers, Cats and exhaust
Lord knows, I am NOT interested in getting into one of these debates in which certain folks dismiss me as an idiot who falls for crooked marketing ploys and how could Porsche leave power on the table and all the rest of it... so this is only what I experienced, and it therefore cannot possibly be wrong. Yours may vary, etc...
My car already had an aftermarket exhaust, intake and flash. Each of these mods was done on its own over time, in that order. The ECU was reset after each one. I am well aware of the subjective nature of this and the myriad external factors that can affect this stuff. But I will say that I felt a bigger difference with this mod than at any other step in my modding process. My confidence that there is a difference is supported to some degree by how specific the difference was: To the seat of my pants, it's a HP mod, not a torque mod, so you experience no additional shove in the back. However, north of about 3500 rpm or so, you get that bungee cord feeling that says there is more horsepower in that part of the rpm band than there was before (I am completely disinterested in peak HP numbers, which I think are only good for bench racing and ad copy). The tach needle swings a little faster, the speedo numbers flip by a little more quickly, and at the bottom of a very familiar entrance ramp I'm carrying more speed than I'm used to. I felt the same effect gearing down to pass people (this was on the 407, for those familiar with Toronto). Subjectively, the sensation is pronounced and satisfying, and considering the cost in relation to my other mods, a pretty reasonable value.
By comparison to the OE part, the IPD piece is made far more substantially than Porsche could have afforded to do. Make of that what you will. If you're a guy who enjoys bolt-on mods, this seems to be a really good one. If you're not, I doubt anything short of a supercharger would win you over anyway.
Bruce,
Your observation is very close to the one I have heard. The plenum does not give you better performance through out the RPM range but it will give you better performance within one.
My light bulb moment in modding came from the Fabspeed headers and a flash to adjust for that. I had a flash for the intake and exhaust before and it was missing something. The throttle response was good felt quick but it lacked that piece until the headers were put in with the flash. Headers without the flash was noticeable but not memorable like the package deal.
I would like to get the plenum and 200 cell cats with a reflash at some point but without the PSE switch to tone down the cats when I need is a tough call.
Thanks Bruce, no need to feel defensive, not asking for dyno graphs...just seat of the pants results. As you mentioned awhile ago, you like to modify your Porsche and you have, and that makes you happy because it becomes 'your' signiture on your 911, and that's cool.
Thanks
Was more preemptive than defensive. As with the Great Oil Schism, debates about bolt-ons tend to become theological with certain folks, by which I mean overheated and without a shred of objective evidence acceptable to both sides. I just wanted to spare everybody that, while still responding to the question.
