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Old 04-19-2003, 09:30 PM
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nyturbo
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Post fabspeed quiet-moderate exhaust

installed yesterday and love the deep throaty sound and feel the extra hp. a few guys raining on my parade told me to watch out for weld holding the two tubes together busting over a period of time and "cats getting fried". anyone have this problem and if so how does one know if problem exists?
Old 04-19-2003, 09:39 PM
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To be honest I have installed numerous systems and ran one on mine for quite some time. I did all of my dyno runs with it and no issues. Any thing man made is prone to error. The point is if one happens to develop an issue it is not the norm. I have sold many and have had no issues. We also sell a ton of other makers exhaust and I know serious issues. Fabspeed is not prone to issue. <img border="0" alt="[typing]" title="" src="graemlins/yltype.gif" />
Old 04-19-2003, 09:43 PM
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nyturbo
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thanks for sincere advice.
Old 04-20-2003, 12:43 AM
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World Wide Pusher
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my weld broke on mine...and i have to get it fixed every now and then you might not notice it but it makes a noise when you shut the car down
Old 04-20-2003, 02:04 AM
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Pete.
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</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by nyturbo:
<strong>thanks for sincere advice.</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">LOL!

The other feedback you have received regarding fried cats after 8k miles and broken welds is equally sincere.

As far as issues that have developed being "not the norm," all one has to do is ask arou nd a bit on Rennlist, or the paddock, and you will find many folks that have had issues with Fabspeed.
Old 04-20-2003, 02:17 AM
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</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by World Wide Pusher:
<strong>my weld broke on mine...and i have to get it fixed every now and then you might not notice it but it makes a noise when you shut the car down</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">Mine kinda rattles like crazy upon start up.. and recently it's developed some strange noise/rattle sometimes at idle.... I still really like it and hope it lasts longer than yours Pete.
Old 04-21-2003, 11:33 AM
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Joe@Fabspeed
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This is Joe @ Fabspeed Motorsport
NY Turbo you should not have any worries.

Pete you mentioned that your 996TT exhaust had some broken welds. I asked you in the past several times to send it back to be inspected and repaired by Fabspeed. You never did this.....why I dont know as the exhaust system is very expensive......but we stand behind our work and if a bracket broke or cracked will will fix it and ship it back to you asap. Pete ship it back and we will return it asap!

FYI- we have fixed several exhaust systems on 996TTs and the repairs were minor BUT caused by lowered 996TTs that must have had the exhaust hit high parking lot "SPEEDBUMPs" or the exhaust bottoming out leaving/entering sharp driveways. There are telltale scatches and dents......when a 3200LB 996TT bottoms out on the rear muffler that puts alot of stress on a hot exhaust. No matter we will fix these rare situations.

FYI: Fabspeed Motorsport utilizes heavy guage T304L USA stainless steel with 100cell metallic German sport cats. The system is extremely strong and the SPORT Cats never burn out and only fail if one burns LEADED GASOLINE. The use of Leaded gasoline will make any BRAND of catalytic converter fail over time regardless of the # of cells per square inch. Catalytic converters dont burn out unless you do something to them.
Have a great day
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Old 04-21-2003, 02:49 PM
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Pete.
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</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by 993 RS Clubsport:
<strong>This is Joe @ Fabspeed Motorsport
NY Turbo you should not have any worries.

Pete you mentioned that your 996TT exhaust had some broken welds. I asked you in the past several times to send it back to be inspected and repaired by Fabspeed. You never did this.....why I dont know as the exhaust system is very expensive......but we stand behind our work and if a bracket broke or cracked will will fix it and ship it back to you asap. Pete ship it back and we will return it asap!</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">Huh? Joe, you must be confusing me with someone else.

I just discovered that the welds were broken and the muffler has a hole on Thursday, thanks to my dealer who had the car for the 30k service.

</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by 993 RS Clubsport:
<strong>FYI: Fabspeed Motorsport utilizes heavy guage T304L USA stainless steel with 100cell metallic German sport cats. The system is extremely strong and the SPORT Cats never burn out and only fail if one burns LEADED GASOLINE. The use of Leaded gasoline will make any BRAND of catalytic converter fail over time regardless of the # of cells per square inch. Catalytic converters dont burn out unless you do something to them.
Have a great day
Joe @ fabspeed Motorsports</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">Joe I find your comments to be quite amazing.

I have never used leaded fuel.

After 8k miles the cats were fried, as confirmed by my dealer and the constant CEL.

How can you claim, with a straight face, that "SPORT Cats never burn out"?
Old 04-21-2003, 09:16 PM
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PETE:
I dont know why you have a combatative and antagonistic tone. Why dont you explain what "burned out" means for everyone. Perhaps you just want to post negative comments. Catalytic converters are not consumable parts.

The German SPORT cats we import are 100 cell/inch and the same quality pieces that all the major serious GERMAN tuners use when and if they want to. They cost more and work great. Backpressure is reduced by over 50% on a 996TT with 100cell sportscats versus 200cell cats.

We have only had 2 failures on over 300+ systems sold worldwide. The only 2 failures were KNUCKLEHEADS THAT RAN LEADED GASOLINE. I sent the cats to a Laboratory and the technicians discovered the cats had been contaminated with lead and both customers ran 110 leaded racegas at the track.

FURTHERMORE- just because you have a check engine light on your Porsche doesnt mean that the sport exhaust system caused a CEL. These cars often have completely unrelated operating issues and malfunctions that causes a check engine light from silly stuff (gas cap loose) to variocam sensors failing (my sister Boxster had numerous variocam problems). Many things will easily trigger a CEL. I have even had dealers REVERSE the positions of the O2 sensors. Accidents happen but those "cats dont simply get fried"!

Many tuners dont use the REAL 100 CELL cats as they cost a fortune. The 100 cell cats get a higher LOADING and WASH COAT of precious metals so they perform as well as 200 cell or 300 cell cats BUT have 50% less backpressure. Turbo dont want nor do they need backpressure. If your exhaust actually broke Fabspeed will fix it PRONTO. We have never ever received any phone calls.......whats the real story! PS Fabspeed Motorsport's 996TT exhaust is the only modular system available so if the cats failed we can REPLACE the cats whereas you have to replace any other tuners system or factory system
Have a beautful day!
Old 04-21-2003, 09:36 PM
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nyturbo
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i have spoken to many people with respect to my Fabspeed since this post and not one has been dissatisfied with the exhaust. i personally have done many mods on my tt in the last 4-5 months and this fabspeed quiet-moderate version exhaust is on the top of my list. forget about the lighter weight and great sound , i can also feel the greater hp. before i installed my exhaust i knew the reputation Joe at fabspeed had with backing his product and this influenced my choice.if anyone is wondering, i am in no way affiliated with fabspeed nor do i know anyone at fabspeed.
Old 04-21-2003, 09:42 PM
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cobra06
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I really think the %50 reduction in back-pressure using 100 cell cats is overstated. Using the small 3" OEM cats as a comparison, we have found that, on a hot cat, back-pressure and SCFM airflow differences were negligible.
Old 04-21-2003, 09:51 PM
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KPV
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Just some food for thought..........

The stock exhaust has expansion bellows between the two resonator canisters.

The Europipe has expansion bellows between the two resonator canisters.

The Fabspeed does not have expansion bellows.

As we probably all know, engines expand and contract with heat and cold, respectively. They do this in accordance with a predetermined engineering principle utilizing the coefficient of thermal expansion. For steel it is .00065, for aluminum it is .00128. For a 200 degree temperature differential, and assuming a 911 boxer engine is approximately 3 feet wide (from turbo to turbo), this translates to approximately 1/16 inch of expansion for for steel and 1/8 inch of expansion for aluminum. A 996 TT exhaust system must be capable of undergoing this cyclic stretching and relaxing since it is tied to the turbos at each side across the opposing banks of cylinders. The bellows in the factory system and the EP system take up this expansion/contraction. The Fabspeed, unless I missed something, must take up this e/c in the tubes, resonator chambers, cats and welds as a unit.

Back in 1986, the first model year 944 Turbo had a factory recall wherein they replaced the original exhaust manifold with a version with a bellows in it. This was to account for the inability of the original manifold to sustain the cyclic expansion/contraction stresses and the resulting broken welds.

Again, just some engineering observations or my $0.02 if you will.
Old 04-21-2003, 10:06 PM
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</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by 993 RS Clubsport:
<strong>PETE:
I dont know why you have a combatative and antagonistic tone.</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">Maybe you interpret my honesty and calling a spade a spade as combative but that's an issue that you'll need to work through on your own.

Maybe after you remove the false advertising from your website? LOL.

</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by 993 RS Clubsport:
<strong> Why dont you explain what "burned out" means for everyone. Perhaps you just want to post negative comments. Catalytic converters are not consumable parts. </strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">So catalytic converters have an infinite life? That's really interesting. Maybe the next thing you can tell us about is the Fabspeed Perpetual Motion Machine.

"burned out" in this context means that I used your glorious "NEVER FAIL" "NO RESONANCE" exhaust for 8k miles and then got a CEL.

My dealer checked out the problem and all O2 sensors were fine but at idle the readings were off (it's been a while so I don't recall the exact terminology) indicating that the cats had failed.

</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by 993 RS Clubsport:
<strong> &lt;snip spam&gt; </font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica"> </font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by 993 RS Clubsport:

We have only had 2 failures on over 300+ systems sold worldwide. The only 2 failures were KNUCKLEHEADS THAT RAN LEADED GASOLINE. I sent the cats to a Laboratory and the technicians discovered the cats had been contaminated with lead and both customers ran 110 leaded racegas at the track.</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">I'm sorry Joe, but given your credibilty issues I can't take your claims at face value.

In addition, as previously noted, I've never used leaded gas. 100 octnae unleaded is more than adequate.

</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by 993 RS Clubsport:
<strong>FURTHERMORE- just because you have a check engine light on your Porsche doesnt mean that the sport exhaust system caused a CEL. These cars often have completely unrelated operating issues and malfunctions that causes a check engine light from silly stuff (gas cap loose) to variocam sensors failing (my sister Boxster had numerous variocam problems). Many things will easily trigger a CEL. I have even had dealers REVERSE the positions of the O2 sensors. Accidents happen but those "cats dont simply get fried"! </strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">See above. The problem has already by analyzed and diagnosed.

</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by 993 RS Clubsport:
<strong> &lt;snip more SPAM&gt; If your exhaust actually broke Fabspeed will fix it PRONTO. We have never ever received any phone calls.......whats the real story!</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">OK fruitloop, first you accuse me of failing to contact you and fabriicating a convenient story ("I asked you in the past several times to send it back to be inspected and repaired by Fabspeed.") and now you imply that my story isn't "real"?

I guess shouldn't be surprised that you haven't changed your tune since I first spoke with you about other issues with your NO RESONANCE (LOL!) exhaust. Apparently you haven't been able to enroll in Customer Service 101 yet.

I haven't contacted you yet because I need to pull the exhaust, take photos, and spend some time checking the failure myself before beginning the denial-ridden conversation with Fabspeed. I only got a brief look at the pieces when they were off the car.

p.s. In that Customer Service 101 course they should teach you about the pitfalls of false advertising (how it can come back to bite you) as well as how absolutely stupid it is to suggest that your customers are liars.

</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by 993 RS Clubsport:
<strong>&lt;snip more SPAM&gt;</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">
Old 04-22-2003, 10:56 PM
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can someone shed some light on this situation??? I was just about to purchase an exhaust from fabspeed but I saw this post. Does the exhaust really crack? i didnt think this was true but I also have heard this from members? I dont understand why someone would mass produce a flawed design? also is there anyway this can be fixed permantly?

Also is this true what KPV said?

Just some food for thought..........

The stock exhaust has expansion bellows between the two resonator canisters.

The Europipe has expansion bellows between the two resonator canisters.

The Fabspeed does not have expansion bellows.
Old 04-23-2003, 12:55 AM
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</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by RockCity:
[QB]can someone shed some light on this situation??? I was just about to purchase an exhaust from fabspeed but I saw this post. Does the exhaust really crack? i didnt think this was true but I also have heard this from members? I dont understand why someone would mass produce a flawed design? also is there anyway this can be fixed permantly?
[QB]</font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">I'm heading out of town but I'll have pictures up next week after I return.


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