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There is only one type of 3 way converter for this car. One time Cali doesn’t get a more restrictive model.
We know there was pup cats added to the mid pipe in the 2009.5. If you can find GXP cats they have a better inlet.
 

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I have a spare pair of GT cats from my LS swap I am not going to use. But I am keeping my spare GXP cats for my GXP.
 
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