Looking for some input on a Dyno Jet wide band o2 sensor install. Looking for the best place to put it. Have long tube headers installed with high flow cat,s (SLP) set up. I need some input on where to locate the sensor, before the cats or after a cats. Have also seen them installed in the intermd. I pipe.
I would think it would be best to put it before the cats to get a true reading. But then again when on a dyno it is in the tail pipe, even though that is the only place it can go.

Any help would be great.

Thanks Chris

 

before the cats preferably