I have fabricated and installed a custom dual exhuast (Not HEADERS! just exhaust) on my DeLorean, only the new systems of pipes has no O2 Sensor. Since I have each bank of cylinders (left bank/right bank, NOT individual cylinders) running in its own pipe, there is no way to read both banks mixed in one pipe as the stock configuration allows-this is why I couldn't put a sensor in. Anyway-to the point: how should I go about tuning the engine now that there is no sensor installed? The DMCNEWS archives tells us how to do this BUT says you need to have an inital reading off the sensor-I don't even have the engine in my car yet--let alone a sensor so there is no way to get a reading. Does DMCH'S header/exhaust kit have the O2 Sensor-I can't see how it would but how do they go about tuning? The engine is expected to be installed very soon, any suggestions are greatly appreciated. Thanks for the past and future responses guys -Dan Benedek #5003 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/