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YOUR RESEARCH100 Cell Cats
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What benefits should I expect by changing the cats from stock to 100 cell units?
Leading evidence: 'Replace cats' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace cats' (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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I have an X-51 C4S with the factory sport exhaust. What benefits should I expect by changing the cats from stock to 100 cell units?
Thanks for your thoughts.
DAB.
Reduced back pressure and louder exhaust. I had a set of FVD 100 cell cats on my 996 before I sold it. I never dyno'ed the car with them on, so I don't know if it helped HP or not. I still have them, so if you're interested in them, e-mail me.
Karl
Karl,Did you have the 100 cell cats on only or did you have headers and mufflers also.How much are you looking for the used fvd 100 cell cats.Did you have any check engine light problems.
Thanks
MGM
</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by Darren911:
<strong>Karl was there any resonance with the FVD pipes and what year was your car ?</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">My car was a 99 and there was no resonance that I could tell. Of course, I mostly ran them on the track and usually with the mufflers removed, so it would be a bit hard to tell.
Karl
</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by LanceK:
<strong>What are the rules/guidelines with changing out cats and are there any legalities involved?
From what I've heard this is very touchy territory...</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">I'm sure it voids the warranty on the emissions system, if the dealer finds out you're running them. I never had them tested in an emissions test, so I don't know whether they would pass or not. The good news is that it is only a 30 minute job to swap them, so you don't have to worry about it too much.
Karl
