Steve68Cougar
Well-Known Member
As others have said, not uncommon. I just got mine back with a new cat under warranty at 18000 miles. Mine is an 18 that was phase 1, but I had them upgrade it to a phase 2 while it was in the shop.I have a 2018 GT with a phase 2 kit installed, only thing done is H pipe. I just had the check engine light pop up on the way to have emissions done come to find out I have a p0420 code. The car has 32,600 miles, has anyone else got this code at such a low mileage? The kit has been on the cR for about 20k miles. Could it be the O2 sensor or might it be the cat. Really don't run the car hard maybe once in a while.