Is there a quick way to tell if a converter has been gutted?

[josh young]

The car has 3'' turbo back exhaust on it with a 3'' converter. I am wondering if there is an easy way to tell if it's been gutted or not. If it was just bolted on I'd pull it off and look but they welded it to the DP. The car pulls like it's free flowing, and it smells like one with the converter off idling. Is there a way I can tell by the O2 millivolts readings? I'm going to get Chris H. to set the car up when it warms up a little, but thought about running a couple gallons of 110 until then, just to up the octane a little. Thanks guys!

 

[Royal-T-Ltd]

you can tap it to see if it sounds hollow ....

 

[josh young]

Thanks man, I'm gonna slap myself for not thinking about that!