o2 simulator

[carguyca]

i have a 1997 328i, completely stock, except for cold air intake, and my cats are bad i was wondering how i can, or where i can get o2 simulators for my car, or will they even work?

i want to keep that lovely "check engine" light off for emissions

[Jeron]

There are instructions online to make them for a few $'s.

[Wayne 962]

A good muffler shop may be able to weld in new cats for you for not too much money. I'm not sure if the car will pass smog if you alter the O2 sensor operation too much...

-Wayne