Quote:
Originally Posted by Kyle_Figueroa
I should correct me self that I don't want a true straight pipe. I would like to keep the cats. All I want is a muffler delete. Sorry for the confusion
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Removing the muffler and putting a straight pipe there won't set any CELs. I know that TDIWyse did this and posted pics (on e90post/diesel), but I can't find them at this time. The increase in sound is not big, because of the turbos, DPF/DOC, and SCR cat already deadening things.
Good luck.