It would be nice to know if that rumor is true or not.
I could stand to study up myself on the difference between two way and 3 way
cats.
I assume that a 3 way treats 3 types of pollutants, not just 2.

wikipedia is good for things like this.

----- Original Message -----
From: "David Beierl" <dbeierl@attglobal.net>
To: "Scott Daniel - Turbovans" <scottdaniel@TURBOVANS.COM>
Cc: <vanagon@GERRY.VANAGON.COM>
Sent: Tuesday, February 10, 2009 12:03 PM
Subject: Re: new CARB rules for cats in Calif?

> At 07:24 PM 2/9/2009, Scott Daniel - Turbovans wrote:
>>so it's basically that OBD-II cats are built to a better standard and must
>>last 50K miles/ 5 years.
>
> I read a rumor somewhere that the cheap aftermarket CATs are only two-way
> instead of three-way...
>
> --
> David Beierl - Providence RI USA -- http://pws.prserv.net/synergy/Vanagon/
> '84 Westy "Dutiful Passage," '85 GL "Poor Relation"