Hi all, Wondering what others have done when removing cats (track car) with the post cat O2 sensors on an E36? Can you run some kind of resistor to trick the DME to think they are still in place? My 328i has 2, but I'm about to install a new cat less exhaust. They are 2 wire sensors if that helps & I assume it's just a temp / cat efficiency sensor rather than full O2 sensor like the ones in exhaust manifolds. Cheers, Russell