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Discussion Starter #1
Can i use a 2006 cat on a 2004? i do not want to use a test pipe or a high flow cat because of emissions.


I believe the 2006 cat is more free flowing. i am getting the reflash and already have a apexi cat back,
and am looking to get the comptech headers?

Thank you.
 

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Discussion Starter #3
So does it make sense to spend the extra$$ for a 06 cat for better flow since i do not want a test pipe or a high flow cat?

Tks
 

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04-05 Cat - 900 Cell
06-08 Cat - 400 Cell
RT High Flow Cat - 200 Cell

If you can find a cheap used 06+ cat I would with that route.
 
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