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YOUR RESEARCH996 C4S: Fabspeed Sport Cats X Pipe
Leading reported evidence
Check oxygen sensors and everything seems
Performed · outcome unconfirmed
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Read evidence and context
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Performed · outcome unconfirmed
But I checked the oxygen sensors and everything seems to be ok.
Leading evidence: 'Check oxygen sensors and everything seems' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check oxygen sensors and everything seems' (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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They were constantly replaced under warranty for 8 years.
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Performed · outcome unconfirmed
I had to get my C4S smog tested right after installing the X-pipe ...
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Suggestion · Original poster
My stock cats developed a rattle and I drove it that way for about a month or two, just couldn't stand it (was hoping for a CEL light to get the dealer to replace under warranty, couldn't wait for it).
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24 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Generation: 20261026T113718Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Just got my Fabspeed Sport Cats X Pipe installed; everything else all stock (headers, mufflers). Sound is great, just a little more throaty - especially when revving hard (4-6K) in 2nd gear! Not more volume, just a bit more oomph! Love it.
And, my seat of the pants verdict on HP/Torque is there is definitely more pep in the 4500 to 6000 range. Can feel just a little more kick and quicker throttle response.
Very pleased after my first drive; will post some sound clips this weekend.
My stock cats developed a rattle and I drove it that way for about a month or two, just couldn't stand it (was hoping for a CEL light to get the dealer to replace under warranty, couldn't wait for it). For half the price of stock/OEM I think the Fabspeed is a good deal!
I think I'll probably get the Fister mod next spring to round out the "sound". I'd recommend the Fabspeed cats
. Alex (who's a member here) took care of me and threw a $100 Rennlist discount my way.
Very cool.
Howard
Howard, I have the x pipe coupled with PSE. The sound is really raw but controllable. At wide open throttle it sounds AWESOME... Once you do the fister mod you will be on the gas out if every turn just hear the flat six howl. I don't experience any drone during highway driving either. Best mod I've done so far.
Thanks for the feedback guys, I'm glad you like it and the X Pipe is a nice upgrade for improved power and sound. Enjoy it and let me know if you ever need anything else. Make sure to check out our Competition Air Intake for the 996 which improves more power and better intake sound.
thanks,
howardm50:
I just installed FabSpeed sport cats 200c.
Are you getting any hesitation or lag accelerating from a stop? Hesitation happens around 1500 rmp with gas throttle wide open.
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+1 on Fabspeed. I put the X pipe sport cats in my 2003 4S and they perform & sound great. Then I added the competition air intake; even better. Dyno shows combined HP gain of 12hp -- I'll take it! Alex, you guys make great stuff and are a pleasure to deal with. Thanks!
It's legal and CA smog compliant. I had to get my C4S smog tested right after installing the X-pipe ... I was a little nervous. But it passed just fine.
u got lucky. it is not C.A.R.B. stamped. Some pass it some don't. Seems to be grey area and u get a different answer everyone u ask. I think it is BS. If u pass smog, u pass smog!
m
I'm a newbie to the 996 having just bought a 2000.
From reading this thread sounds like the Fabspeed X-Pipe and the Competition Air Intake combo is a good place to start if I want some extra HP. Correct?
That's because there is barely enough media, aka "brick" in there to do it's job. That's the main reason so many aftermarket converters only last a couple years. This is no unique to this company, almost all aftermarket catatalitics are made this way and that's why they are cheap too.
My car since I got it in 2003 has burnt out the original cats every 1.5 years. They were constantly replaced under warranty for 8 years.
I believe they couldn't take the amount of oil my engine burns with out getting tarred up and eventually getting so plugged up until I lost hp. The 8th year I waited for them to both go and then I had them replaced under warranty. I drove to my indy and replaced them with fabspeeds x-pipe which are less restrictive and they now sit in a box never to be installed again. I have had the fabspeeds on the car for 2.5 years now and I have no signs of any problems. I think because they are less restrictive their longevity on my car they will last longer. I've all ready gotten 1 year more out of them then the OEM ones.
Same thing happens for me too. If I shift into 6th gear at 2000 RPM it might come up. The error is usually get is a lean condition in one of the banks. But I checked the oxygen sensors and everything seems to be ok. So I just reset it and the car goes along without incident.
Doesn't happen too often and when it does it's around town if I am taking it too easy.
Well your case is unique. I would just replace the converters with bypass pipes and re install them a week before the emission testing is due. Your engine is clogging them so as you said, a free flowing one will take longer to clog.
I have both and love them. Put the X-Pipe in about 2 year ago and then added the Comp Air Intake a year later. The combination is fantastic and both have performed flawlessly despite hard track use. I'm a fan.
Thanks for the feedback guys, your the best. Glad everyones enjoying them and PM me if you have any questions at all. And stay tuned for a few the new intake transformation on here. Were working on retro fitting the new GT3 style Dual cone competition intake for the 996 and 997.1 cars.
Thanks,
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