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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHFABSPEED MOTORSPORT | 996 Sport Headers
Reported or suspected cause
fabspeed's equal length sport headers
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
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Reported cause · Original poster
One easy way to mitigate this issue is Fabspeed's equal length Sport Headers.
Leading evidence: 'fabspeed's equal length sport headers' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'fabspeed's equal length sport headers' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Replace exhaust system wont do much' (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.
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Suggestion
You are probably right, without other mods just replacing exhaust system wont do much for performance.
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Suggestion
If any 3.4 or 3.6 996 owner with a 30 hp bolt on gain has the test sheets from a independent rolling road run , let�s see them
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Suggestion
If any 3.4 or 3.6 996 owner with a 30 hp bolt on gain has the test sheets from a independent rolling road run , let�s see them
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.
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22 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Generation: 20261026T152433Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
One of the biggest constriction points on the 966 Carrera is the OEM Manifolds as exhaust scavenging and flow are compromised due to uneven OEM Primary Tubes.
One easy way to mitigate this issue is Fabspeed's equal length Sport Headers. Our Sport Headers provide improved torque and equalized engine pulsing thanks to industry-exclusive mandrel-bent primary tubes.
Fabspeed's Sport Headers are a direct bolt-on upgrade/replacement of the factory headers on all Porsche 996 Carrera vehicles. Creates+15 HP (whp) +12 TQ (ft/lbs) and saves -2 lbs.
Fits all Porsche 996 Carrera vehicles 1998-2004
Improves horsepower and torque by 15 whp and 12 ft-lbs
Saves 2 lbs from the rear of the vehicle
One piece CNC mandrel-bent primary tubes provide maximum uninterupted flow
F1-style merge collectors provide optimized exhaust scavenging
Improves power and torque throughout the RPM range
Direct replacement for the factory headers
Simple DIY bolt-on installation
All Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty
IN STOCK & READY TO SHIP
https://www.fabspeed.com/porsche-996...sport-headers/
Please feel free to PM me with any questions or for forum pricing
I have Fabspeed mufflers, interested in installing these Fabspeed Headers, but I have seen that one can never get all the bolts out when removing the old headers without breaking one or more studs. Anyone that may have removed their headers ever dot it without breaking any of the studs. If you did break any, how succesful were you removing the broken stud.
Lol , in takes , chipped , headers , 200 cell cats and mufflers 8 k spent , youre lucky to see 8 hp total improvement on a motor that sees 100 hp/ litre stock on the rolling road
I personally havent done this before but i read a procedure once of:
- drive car to get the engine hot
- soak bolts in pen fluid overnight
- resoak then remove
That was by memory but seems to make sense
[Image-only post; no author-written text. Original image references:]
https://cimg4.ibsrv.net/gimg/rennlist.com-vbulletin/1100x712/996_carrera_perf_package_dyno_22280_1380829814_1280_1280_6f6856b5fc39ca88ac93fe894e94a061fda06f79.jpg
All these demands for dyno print-outs, and even when they are produced you refuse to believe them. You should move down here and take a job at the White House.
It's not like the 996 Carrera is a *fast* car nowadays. 265 or 285rwhp doesn't make much difference in the scheme of things. When curve after curve on plots suggest that opening up in/out breathing alongside a chip modestly raises power, I'm inclined to weight that evidence over the grumpy old bastige point of view.
But I'm really just in it for the sound
[URL="https://www.youtube.com/watch?v=huvaSt3bMAE&feature=youtu.be"]https://www.youtube.com/watch?v=huvaSt3bMAE&feature=youtu.be[/URL]
https://www.youtube.com/watch?v=huvaSt3bMAE&feature=youtu.be
This is a source reference. Confirm exact model applicability in the original material.
