this I don't get.. with as high flowing and light as cats have gotten there is literally no reason not to have them anymore unless it's a track only trailer car.
people swear I have gutted cats or none at all but they are there and car is fully legal.
with today's tech you can now have power and be responsible too.
2013 2SS Dusk Edition
Dual Mode Exhaust CAI Inc CAI
Lethal Racing Stage IV+
PER 418ci Forged LS3