Okay.... well that blows my theory! There were plenty of complaints about smelly cats on the 03's when they first came out. The smell went away after a couple thousand miles though.
Honest to God guys, it smells a little skunky. I sniffed areound the car thinking maybe it was the brakes but it is definately coming from the exhaust. My wife and kids even noticed it. I called the guy who dynoed the car, he says most 03 & 04's smell a little.
Like I said, it went from 16.3:1 to 11.7:1 on the air fuel. I think it might just be cooking exhaust fumes while it's sitting there.
OK so I am not the only one. I believe or am theororizing that since it was running way lean and is now running rich, the converters are forced to burn more residual fuel and they just stink while they are doing it. It drives perfect so I am gonna keep my eye (nose) on it and not worry too much.
Ive been told that when it starts to smell skunky then you have a cat that is about to go completely plugged or its not functioning as it is supposed to.
For anyone how cares, I drove the Cobra today. Purposely did not get on it on the way home. Drove for 20 minutes, parked it, sniffed it and it did not stink.
So, I get on it and immediately park it, it stinks. I wait a few minutes, it doesn't.