CTS turbo 200 cell DP and Vibrant O2 spacer

[M3P-A90]

CTS turbo had a sale on their catted dp and I decided to try it. It’s 200 cell so I also bought Vibrant O2 extender that comes with 3 different flow reducers. I’m leaning towards using the middle flow reducer to help with not getting the CEL for O2, my ECU is ‘23 and is locked.

(Let’s not turn this in could have bought a different DP thread) ?

Anyone have any suggestions on which reducer I should use?

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[cinosa]

It might not be relevant (different platform), but I used one of those types of spacers on a DP I had on my Golf R when I was only running a JB4. None of the 3 kept the CEL off, and I had to eventually tune the car to keep it that way.