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GS - 4th Gen (2013-2020) Discussion about the 2013 and up GS models

Custom exhaust

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Old Sep 20, 2012 | 05:47 PM
  #1  
GSTONY's Avatar
GSTONY
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Default Custom exhaust

Hey guys, i just orederd me a HKS hi power the non turbo version. Going to do the install soon, I couldn't wait for Joe Z and other company to produce the exhaust so i just went ahead and bought me a pair of HKS cans Im going to do 2.5" piping from the cat back and the hks tip will go right behind the bumper in to the hole right before the tips, as i will be using stock tips untill some one make a replacement stock tip in a titanium finish. The hks exhaust tip i will paint it in high temperature black so when you look inside the tips it will look oem. Any suggestion to leave cat or go catless, will my CEL come on if i go catless? Well stay tune i will post up picture with my setup soon and my car once i get it done. Is any GS owners going the custom exhaust route ? Oh and my car is a GS-FSPORT AWD SP
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Old Sep 21, 2012 | 07:34 AM
  #2  
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Originally Posted by GSTONY
Any suggestion to leave cat or go catless, will my CEL come on if i go catless?
I'd think on any modern car the post-catalytic converter O2 sensor will trigger a check engine light after the removal of the catalytic converter.
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Old Sep 21, 2012 | 08:26 AM
  #3  
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whatever u do , do not touch the cat, u will have nothing but problems,ur engine wont run normal, performance wise also.
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Old Sep 23, 2012 | 10:32 PM
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Can't wait to hear it!
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Old Sep 24, 2012 | 01:27 AM
  #5  
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Good luck with the project but I suggest you keep the cats.
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Old Sep 24, 2012 | 03:46 PM
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No cats = really smelly at red lights and in your garage! Who wants a 60k luxury sedan smelling like a 93 Honda civic SI?
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