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Ripping out the opf material

Old 09-29-2023, 12:21 AM
  #136  
SharkBlueGT3
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Anybody dyno their car after OPF was removed?
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Old 09-29-2023, 10:41 AM
  #137  
Porsche444
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Originally Posted by ShakeNBake
GT3 header on Soul website. (That looks very different than what I saw. There is about 3-4" deeper starting point for the material that's in there on the RS header I saw on a bench for a car here in Austin. Hard to say if it's OPF or catalytic matrix.

so the question is, why does Soul have the material in there as well? If it’s few inches further back, then logically it sounds like the filter is somehow needed, perhaps complete removal makes car too loud?

here is better picture of what they have inside




Last edited by Porsche444; 09-29-2023 at 02:15 PM.
Old 09-29-2023, 08:56 PM
  #138  
smellycat
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Anyone have first person experience with a dealer and non OPF exhaust. Trying to understand what ppl are seeing on the ground.
Old 09-30-2023, 12:19 AM
  #139  
GT3 Mike
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Originally Posted by Porsche444
so the question is, why does Soul have the material in there as well? If it’s few inches further back, then logically it sounds like the filter is somehow needed, perhaps complete removal makes car too loud?

here is better picture of what they have inside



The material in the SOUL header is the catalytic converter.... LOL

Knock the OPF out of the stock GT3 manifold and you'll see the exact same thing behind it.
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