cat converter options for 93

[semlin]

So I need to price out the option of replacing my cats on a 93. Has anyone replaced theirs with aftermarkets in a state with emissions testing? I am curious about available brands and how they perform.

Semlin

 

[bjowett]

Converters are rated in cells per inch. From what I have read, a converter needs to have 400 cells per inch to meet stringent long term testing requirements. No idea on what products meet that... there seem to be more and more every day. Magnaflow and Dynomax have entered the hi-po-flo market. A converter with less cpi will meet spec for a while, but eventually fail to have enough metal in it to create the proper reaction.