LS1 VS LT1 can i take him?
ORIGINAL: 02StanGT
The rear O2 sensors only monitor the cat. They have nothing to do with the performance. People put 'simulators' on them so it won't send codes when they have no cat.
ORIGINAL: gvmv
This is the interesting question, with the O2's cut off, and if he hasn't tuned for it then it won't put the computer into open loop, correct? Running in Closed Loop it runs rich and retards timing only having access to front O2's. Isn't this why people put in dummies in place of there Rear O2's to simulate them?
ORIGINAL: red star and his 02 censors are just cut off



