Hi all, it's been a long time since I've posted. For those of you with downpipes, did you also add those 02 sensor bungs? I read somewhere at one point that they help with preventing CELs coming on. Anyone have a link? I can't find them anywhere. Thanks! FYI, going with the SPD pipes...they seem to be the most affordable ones out there.

 

Found them....they are on the SPD web site...

O2 Extenders - Pair (spdperformance.com)