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      04-30-2020, 03:56 PM   #4
nekbreaker
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Drives: bmw e92 m3
Join Date: Mar 2011
Location: massachussett

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Quote:
Originally Posted by wheezyF View Post
I had the increased emissions light come on shortly after I deleted my secondary cats but they went away after a couple starts later and never saw again lol.

My car definitely smells more on cold starts than before I modified the exhaust, but not really noticeable once warmed up
your secondary cats have no sensor so they will never trigger a cel light
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