Thread: AA Catted DP
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      10-13-2021, 06:13 PM   #7
P_Leotardo
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Drives: BMW M340i Xdrive
Join Date: Oct 2021
Location: NJ

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Do you have to get a tune to operate with an aftermarket downpipe?

Will installing an aftermarket downpipe cause CEL?

Will installing an aftermarket downpipe catch flack from the dealer at service intervals?
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