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      05-03-2021, 04:24 PM   #17
taranfx
Z4 35is
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Drives: 2011 Z4 35is || 2016 435i
Join Date: Apr 2016
Location: Santa Clara, CA

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Quote:
Originally Posted by Lurcher View Post
I never needed it - likely because MHD takes care of things for you ;-)
Mind explaining it further?
I've catless downpipe and and reflashed Map0 with "catted/OEM DP" to go for emissions. It is throwing codes for catalytic converter. How would it ever pass emissions?
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