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I manage to get a hold of Euro E46 M3 Headers (non CSL) (hopefully will receive my set in a month or so). Pal, any word on the fabspeed section 2 group buy will happen?
I wonder if it's necessary or advised to also have the Euro section 2 cats vs. the stock U.S. section 2 cats? I wonder if the other 2 O2 sensor and the EGT is required for the car to run right?
This is new to me, so I'm still a little unclear about this. Will ESS tune only require the 2 primary O2 sensors in the Euro Headers and skip the secondary two O2 sensors and EGT? My Euro Headers already have the bung available (1 per header).
Finally is it worth JET/hot coat the Euro Headers I'm getting? Is it necessary?
Thanks for the input.
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