Bad Catalytic Convertor?!

[Royal-T-Ltd]

Is there anyway to look at Cat. Convertor and tell if its bad? I have a high-flow Cat which came w/ my ATR downpipe and it looks fine internally [light passes through fine - element looks fine] but my exhaust stinks pretty bad, brings tears to my eyes...

 

[blackbuick87]

Are you sure youre not just running rich due to a pre turbo exhaust leak or something?

Never heard of a bad cat stinking at idle. If it was bad I would think it would kill your spoolup and power