hcb1700

iTrader: (9)

OK, I posted this question on the external engine section and am not getting many responses to it. I added some headers to my '01 Z28 to compliment the MS4 cam and LS6 heads and don't really know what to do with the O2 sensors. Am I suppose to only use the two first front sensors and eliminate the back when I'm getting it tuned, or what should be done? What are you guys doing about this?

MUSTANGBRKR02

iTrader: (91)

Most people eliminate the rear o2 sensors.

ls1curt

iTrader: (31)

the fronts are the only ones that do something. the rears will just throw the check engine light on, unless you get them tuned out

hcb1700

iTrader: (9)

OK guys, thanks for your responses. I'm going to go ahead an eliminate the rear O2 sensors.