Thread: = = Vishnu N55 Catted Downpipe - Power Gains / O2 Extension Integrations = =
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      05-18-2011, 01:19 PM   #11
FDfranklin
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Drives: Ordered: 2023 G80 M3 6MT
Join Date: Aug 2010
Location: Tampa, Fl

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Does anyone know if a dealership would allow a catted DP? When I asked my dealership they said a downpipe would void warranty, but I didn't ask about a catted one..
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