986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - need help with installing fabspeed bypass pipes

jmatta · 01-01-2009, 06:03 AM

There are no O2 sensors on the secondary cats on later cars...can't speak to the early ones?

01-01-2009, 06:03 AM	#16
jmatta Registered User Join Date: Nov 2007 Location: Chicago suburbs Posts: 1,675	There are no O2 sensors on the secondary cats on later cars...can't speak to the early ones? __________________ JGM 2002 Boxster S 1973 911 Green FrankenMeanie PCA DE Instructor circa '95