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Old 03-12-2019, 01:24 PM
  #31  
Das14444
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Originally Posted by Ttz06vette View Post
The light is a PIA and will be an issue at some point for resale or when bringing to dealer for service. Best to get it taken care of with O2 spacers or tune to shut off the code from throwing.
why is it an issue for resale?
lets assume I put the stock cats back before resale;
is the CEL somehow stored in the VAL or DME and potential buyers who run a PPI woukd see this?
If yes - thats a good reason for me NOT to run the bypass and stick with sport cats. But let me know your reasoning around resale issues.
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Old 03-12-2019, 01:36 PM
  #32  
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I am sure the ECU stores the code but if you plan on returning it to stock it shouldn't be an issue as long as the light re-sets itself. Don't know how it works with the Porsche ECU. In the end if your plan is to go back to stock setup for resale you could explain it away.
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Old 03-12-2019, 02:05 PM
  #33  
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Originally Posted by Das14444 View Post
soul vs fabspeed bypass pipes? It is all the same?
Lacking catalytic converters in general you'll be in the same boat. We'll do everything we can to prevent your CEL and / or set you up with the right tune to prevent that.

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Old 03-12-2019, 03:12 PM
  #34  
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Soul bypass here. Love how they sound on the outside of the car. Inside, it's still pretty quiet with the exception of hearing the turble whoosh indoors or driving along side a barrier. Odor is strong at times (usually rolling to a stop light where you are stopped for more than a few seconds), but that's expected and not as bad as some of my previous rides. Def worth the $ and would recommend to anyone that gets one of these 3,0TT 911's.
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Old 03-12-2019, 04:14 PM
  #35  
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I have bypass pipes.. CEL is intermittent. Sometimes no CEL for months. Sometimes CEL for 10 days straight and then it disappears. I have 02 extenders too.

Seems like grandpa/grandma style driving triggers the CEL when it's off.. By granny driving I mean 5% throttle for extended periods on the city/highway.

I love the sound and performance.. Wouldn't have it any other way. Smell is there if I stop at a light after I've been romping on it.. Other than that no smell issues.
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Old 03-13-2019, 02:28 PM
  #36  
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Phil from Fabspeed here.
We recommend when going cat bypass you tune the 991.2.
Some of the posters have stated the same issue when you go cat bypass with O2 extenders. The O2 extenders do a great job of handling most of the issues but occasionally you might get a cel. A tune can stop these issues and altogether and a ton of HP gain.
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Old 03-14-2019, 11:02 PM
  #37  
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Originally Posted by Psorcery View Post
I have bypass pipes.. CEL is intermittent. Sometimes no CEL for months. Sometimes CEL for 10 days straight and then it disappears. I have 02 extenders too.
Seems like grandpa/grandma style driving triggers the CEL when it's off.. By granny driving I mean 5% throttle for extended periods on the city/highway.
I love the sound and performance.. Wouldn't have it any other way. Smell is there if I stop at a light after I've been romping on it.. Other than that no smell issues.
How do you reset your CELs? I leery of the COBB route unless my dealer goes along with it.

Anybody: Can the iCarsoft P700 V2.0 reset the CEL from bypass pipes? I have the mini-cat extenders, but got a CEL at fuel stop 30 miles after installing bypass pipes.
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