I have a Zeitronix wideband and a vibrant header. i have searched and cant find a clear cut awnswer as to if the widband can be placed in the second bung or if i need to weld a new one (for a total of 3 ) to the downpipe. I was just hoping someone could give me a detailed how to. i need to get this done so i can tune it. thanks guys.

 

from what I understand as long as its before your cat and preferably not to close to the header, your good.

cat messes up the reading, and the heat being close to the header can ruin the sensor.

 

well, i have the header and down pipe from vibrant. so on the downpipe before the cat. does it have to be at any angle? and im assuming this means i cant just replace the second one with my wideband?

 

let me dig up that diagram i saw yesterday. should help. 1 sec

http://www.bmotorsports.com/download...00_30-2301.pdf

page 6.
sensor placement.

I think you may need another one put in.

 

im assuming that the car has 2 o2 sensors. pre and post cat.

thanks ill check it out