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YOUR RESEARCH200 cell cats? yeah they're worth it....
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question of legality in california
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The other issue is the question of legality in California for smog tests.
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getting aggravated my shop was able to request some extension sleeves and clamps from the manufacturer and get them installed properly.
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Suggestion · Original poster
Well, I got a check engine code a few weeks back that I found to be a bad catalytic.
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Speedyellow, we had a fit issue with owners running the Sport Cats with PSE Mufflers which have longer inlets, so we needed to cut our pipes shorter for these mufflers.
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Afternoon fellas... I wanted to share my experience with my new 200 cell catalytics. I know of few of you have considered swapping a bad cat or 2 over to an aftermarket application. Well, I got a check engine code a few weeks back that I found to be a bad catalytic. So the search began for something racier.......
Fast forward to last week.... received my 200 cell x-pipe cats from Fabspeed. Had my indy install them which was a good move on my part since they did not fit properly. So instead of
me
getting aggravated my shop was able to request some extension sleeves and clamps from the manufacturer and get them installed properly. (If it was me under the car and the cats didnt line up id still be cursing)
Anyways if you were on the fence about 200 cells.... Jump off and go buy them.... I have PSE on my car along with the schnell CAI which sound good. But now, the car makes some of the sweetest noise ive ever heard. The howl that comes from the exhaust at wide open throttle is sublime. Dare I say the car now sounds like a GT3.... well the picth is somehow higher and the throttle response has improved considerably. No more laziness at lower rpms.
Sorry no sound clips but trust me on this... if your looking to wake your 996 up and add some fantastic exhaust notes this is a great option. Also NO DRONE with my current setup....
That's great! Glad to hear it enhances the PSE. My only change would be a different manufacturer. FVD perhaps. Many folks don't have too many nice things to say about fabspeed products.
Yeah, I had my reservations as well but rolled the dice... and.... they delivered cats that were trimmed too short. Apparently they trim1-2 inches off for PSE. They must've trimmed twice!
In the end an easy fix and parts were overnighted so they made it right on the second try.
no fitment issues with fvd and pse for me.... yes they sound like gt3s' since fvd and fabspeed share the same cats (hjs racing). Great mod for sure with noticeable performance.
IMG_1548.jpg
I have Fabspeed's version one of these cats (not x pipe) and I love them! Not sure how old they are as I bought them second hand but they've been awesome
hardback, Thanks for the great feedback. Im glad we got it all worked out for you, sorry for the issue. It really does wake up the car in sound and power. If anyone is interested in doing the upgrade, let me know and I will offer you a member discount on the upgrade.
thanks,
I wonder how those would sounds with Fister D sport mufflers. I like the Fisters because they aren't too loud and don't drone. OTOH, a little more volume wouldn't be bad if there was no drone. I think it might be a good combination.
200 cell is "cells per square inch", ie 200 holes in the ceramic brick per square inch. The lower the number, the bigger the hole so the lower the back pressure. Lower cells also make it less efficient at its function so no OE cats are 200 cell. They are 400-600+ cell.
Just bypass pipes for me....no expensive cats mods, no exhaust and weight savings. $100 bucks. I can deal with the drone at certain RPMs....makes the car sound nice. Just my 2 cents. Looks like a nice clean install though.
Dennis, if you looking for more exhaust sound you wont be dissapointed. When the throttle is wide open the car sounds incredible. While driving casually you will notice a crisper note. The engine just sounds like it is breathing better and to me this is exactly how a Porsche should sound.
I considered bypass pipes but from other members feedback I figured they would be too loud for daily driving... Especially pulling in and out of my neighborhood.
But... I am curious how much louder they would be. My uncle has a 996 race car with straight pipes and his car is possibly even too loud at the track... I was just looking for "more" and to me the 200 cell cats are perfect. (for now
)
ive considered getting the 200 cel cats but im worried it will make the car to loud.. kind of a hard question but how much louder will it make the car? i have a set of m&k mufflers which are fairly aggressive on their own.. i was going to go with some evoms headers first and see how that turns out..
Thanks for the feedback guys. The 200 Cell Sport Catalytic converters actually flow better then the 100 Cell version, that's why most manufactures are using them now. The reason is, a 100 Cell Cat has about 2-3 pins that must go through the entire cat at different angles to keep the Cat core from collapsing on its self and coming loose. A 100 cell Cat is not as strong due to less cells, so the pins keep it from moving, but it causes a flow restriction, due to their size. We have tested them on a flow bench and the 200 Cell version flows better and is more durable. It also helps keep the CE Light off better and is more compliant with emissions and inspection.
My only real comment I can come up with is I'm curious to how much cross flow really happens with this x-pipe. I'm heavily considering one myself but I'm a little concerned by the lack of cross section area where the exhausts merge together. No doubt the videos on-line are exactly the sound I'm after and it's music to my ears for sure but I'm never one to do something without knowing it's the right direction for performance as well.
In stock form the exhaust is routed across the back of the car to the other side, with this x-pipe the cross section seems small enough that the majority of those gases would appear to now be doing a 180 and headed back to the same side of the car vs. the opposit side on the stock system. Still with a balace point in the center where they can mix though. I'd love to see a cut apart of the merge point to see the internals to get a better idea of flow characteristics. The FVD unit has a much larger cross section area for gases to mix.
you read all kinds of funny stuff on the internet... 200 cell flow better than 100? maybe cheap 100's but if you get good 100's a 200 can't match the top end flow... nor does it produce the sound volume that a 100 can dish out...
The new design we will be releasing in the next few weeks will be a modular setup. So you will be able to switch between Sport Cats and Catbypass Pipes on the fly depending on your application. The system is a direct bolt on fit and will allow for more adjustability with different exhaust and setups.
Speedyellow, we had a fit issue with owners running the Sport Cats with PSE Mufflers which have longer inlets, so we needed to cut our pipes shorter for these mufflers. But the issue was corrected and you will have no problems bolting it right on.
Thanks and let me know if you have any questions.
I can attest that the car
feels
like it pulls stronger. Also
feels
like it revs quicker. All in all the engines breathing has been noticeably improved. Only way to prove those gains is to dyno the car.... Maybe one day i will but I wanted an application that would improve sound and still keep the motors emmisions in check.
Id bet you would agree with me if you tried this mod.
Definitely better flow....says the butt dyno....if I had to put a number...I'd say 20% increase in sound at WOT with no drone and couple 200 cell with fisterd's...still no drone but great sound at WOT
Are you all stock exhaust wise?
Yes, I'm running the bone stock exhaust. I've been on the fence for a long time about switching to an aftermarket exhaust system but I have stayed with the stock system.
The main reason I am hesitant to switch is that I really like to press hard on the loud pedal every chance I get and the way I see it is why switch to a louder exhaust system and draw more attention to myself every time I nail the throttle. The stock exhaust is far too quiet but it does help you to fly under the radar, at least as far as the sound goes.
Thanks for your reply geetee. Are you running Fister Ds?
I have stock muffler with fisterD hack and I am tired of my stock cats going dead, I am also considering high flow 200's, and am curious of the result with stock mufflers.
Yes, I'm running Fisterd's + 200cell + intake.
With just the 200 cells + stock makes it slightly louder along with more flow.
with the 200 cells + fisterd's...still somewhat stealth but WOT it's pretty loud BUT no drone.
with the 200 cells + fisterd's + intake...past 4k rpm's....people know your coming but still no drone.
I've had stock headers+stock cats + afterhours before.....my current setup is still way more quiet and no drone
You can't beat stock to fly under the radar though....
Ferdinand, thanks for posting your clip.
I found another on youtube, just search PSE with 200 Cell cats, you will find a white carrera with a good sound clip. However, the best sounds come when the car is moving and the throttle is dropped to the floor...
while we are at it, what about cat bypass alltogether, did anyone manage to get these to work without having any check engine light (CEL) coming up ?
I don't have emission check here in florida, so if I can save money and weight at the same time
Phil, the guys at Flat6 motorwerks have a set of bypass pipes they have been trying to unload. They are in Miami off 58th St. and the Palmetto. Im curious how loud they would be...
No affiliation...
super easy to install all exhaust related mods
simply lay down on the ground and you can remove all you want from there, not even a need to jack the car up. It IS easier to remove the muffler if you remove the wheels and I'd advise you to do so. But minimum tool required and easy. It is time consumming because space is limited so count 2 or 3 hours for any of the job muffler or cats
philoo, that would be true if your car is new but if not, then you will have to deal with a bunch of rusted bolts that need to be cut or heated which might be easy for some of us but not necessarily for a newbie.
The other issue is the question of legality in California for smog tests. My guess is that they are not. If the tech is savvy, he can tell they are not stock and I don't think Fabspeed has a CARB cert. You might get by with them but you pays your money and takes your chances.
I opted for the Speed Tech X-Pipe with the high flow 200 cell cats. I already had the Fister D Stage III Titanium mufflers. I could not be happier with the sound
It seems to me that when I added the Speed Tech X-Pipe and high flow cats, the sound comes out sooooo smooooth
Like SILK
Passed smog two months
ago with flying colors
Glad you passed but my point is your passing is based on the fact no one noticed that your cats are not stock once some one notices you will have a problem. I think it is silly that "non approved" parts can cause a failure even if your test numbers are all with in the smog level for your car.
California smog is a pain in the azz. My first 996 I bought had the K&N intake from the previous owner and the tech failed me for visual inspection. I had to put the original back on and take it back (which I was going to do sooner or later) so I can get the car registered.
Hi Larry,
It's nice to see you posting here and read your feedback on our hi-flow catted X-Pipe! And thanks again for thinking of us when it was time to do it...
I went with the FVD setup,headers and 200 cell cats along with TUBI mufflers.and really no joke the sound is incredible! and a definite seat of the pants boost!
I'm a fan too. I've had Fabspeed's 200-cell X-pipe cat for about 3 years. Added a Fabspeed CAI about a year ago and you're right ... the sound at WOT between 4-7K rpm can only be described as sublime. I never get tired of hearing it, and I giggle like a schoolgirl when I see a tunnel or underpass ahead.
This is the exact worry I have about passing the tech inspectio (T�V) in Germany. A dirty underbody and a brand new shiny exhaust is going to draw attention, I would imagine.
Your point is well made. I had a CA smog tech pass my vehicle with a new OEM exhaust and correct OEM converters. 2 years later I returned to the same smog tech, after only about 2,000 miles and no changes, and he failed the vehicle on a visual inspection, because he noted the numbers on the new factory converters were not on the CARB-approved list. He failed to check the numbers on the previous test. The vehicle is a 49-state model from Arizona. Dealer ordered correct replacement parts for the VIN. I had to remove the expensive factory converters and replace them with CARB-approved aftermarket parts. Now it passes the visual examination, but has never passed the emissions test again, after over 10 attempts and thousands of miles.
