The cats are gutted and it throws a code for the O2 sensors at least once a week

I have a 2014 Dodge Challenger 3.6 SXT I have got to the cats and have a hard time keeping it from throwing a code I always run 91 octane and I just put new 20 inch rims on can someone please help me with a tune for the Diablo Trinity T1000

Just recently got a T1000 for my 2014 Dodge Challenger SXT 3.6L having trouble finding tunes for it. please help