Thread: Active Autowerke N55 Catted Downpipe , No CEL Guarantee!
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      11-23-2019, 12:39 PM   #4
Natedogr
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Drives: 2015 BMW M235i
Join Date: Nov 2019
Location: Texas

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Thanks for the quick reply, is a tune required for this downpipe or like fabspeed we will still see some gains?
Thanks mike
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