LS1TAUTO

iTrader: (1)

So my car started suppering at idle and at light Throttle and when idle with foot on bake major hesatation. my buddy threw his scanner on and it says somthin cat bank 1, so I kno it has to do with my cats, car has one hi flow cat and a stock cat, I also have LTs and true duals with bullet mufflers still stock tune should I yank the cats out and get a tune? Will that fix it? Would a frost tune work?

71ANTICARB

iTrader: (23)

What exactly was the code was it a low efficiency code? If that's the case cat is most likely bad. You could remove it and run sims or just replace in with another high flow