Stang_Killa

I was wondering if i cut my cats would my car run lean? I want to run true duals. Will i need o2 sensers? I know ya'll probably get asked this alot , but thanks for the help.

Red99TA

iTrader: (11)

If you ditch the cats and run true duals then you will only need the front O2 sensors and not the rear 2. The rear ones are used by your computer to determine if the cats are functioning properly. You can put O2 sims on there and trick the computer into thinking the rear O2's are there and working.