In my previous post-I was wrong, I see that the performance kit really does have an O2 Sensor. So, is the O2 Sensor still effective only on one bank of cylinders, does it matter that it doesnt have gasses from both? Dan Benedek #5003 > Does > DMCH'S header/exhaust kit have the O2 Sensor-I can't see how it would > but how do they go about tuning? To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/