[D85James]

what is everyone's thoughts/experiences on running without an 02 sensor? my 911 has custom heat exchangers and bursch muffler. the previous owners had done the exhaust work and left out the 02 sensor and i took out the 02 sensor light bulb in the dash bc it was blinding red at night.

is it necessary to have one to get the right air/fuel mixture? and what set up should i go with if i need to add one? i am getting ready to drop motor/trans for various other projects. i might add i've adjusted the mixture just using my ears to set the rpms around 900-1000


thanks,

james