I'm trying to just completely do away with my catalytic converters because of the po420 code but I'm stuck between hi flow cats or cat deletes. Any ideas or direction would be much appreciated.

 

This probably doesn't belong in the Car of the Month Showcase.

Either way, if the P0420 code is due to a sensor problem or too rich/lean of a fuel mixture due to some other issue, it's still likely to be there with HFPC's or PCD's. I personally prefer HFPC's (high flow pre-cats) because you don't get the weird exhaust smell, it helps reduce rasp and you can still pass emissions.

Do you know why you have the P0420 code? Do you suspect the stock cats are faulty?