O2 Simulators

[99blkgs]

i want to remove my cats and replace it with an aftermarket header and down pipe and also o2 sims. i was wondering do the o2 sims completely replace the o2 sensor or go in between them and the header??

thanx in advance

[smooth1]

????? go in between them and the header? I'm not sure what you mean by that, but, yes, they replace the sensors.

[99blkgs]

????? go in between them and the header? I'm not sure what you mean by that, but, yes, they replace the sensors.

oh yea thats all i wanted to know pretty much thank you

[TRD911]

The post cat O2 sensors are fairly easy to replace / bypass / simulate. I have an 00 Tundra V8 that I designed and built a circuit to bypass them.

All the post cat o2 Sensors check for is cat performance. THEY ARE NOT RESPONSIBLE FOR ENGINE MAPPING.

B