I need to find replacement catalytic converters for my '97 911. The OEM ones cost a whopping $2000 with a 6week wait time. Unfortunately I live in CA which has the stringiest smog rules so I'm looking to see if anyone can suggest alternatives to OEM.

It doesnt necessarily need the C.A.R.B stamped logo but it must help me pass smog. Thanks in advance.

 

This is what I have on my C4S, passed SMOG here last month with flying colors.

http://dachperformancesystems.mysite.com/index.html

Weighs less then the OEM one, & you will pick up a few extra HP from it. I had mine ceramic coated.

 

they look like the ones from fabspeed minus the cat quick take off option.

 

Yea, Fabspeed, copied their design.