What are the dimensions or specs of the OEM catalytic converter?

Looking to upgrade the exhaust system but am not willing to go with a test pipe (inspection issues). I wanna get a cat with 2.25" in pipe diameter to go with the rest of the avg., 2.25" pipe diameter for the aftermarket pipes. Any recommendations?

 

check out summit racing, they are mostly for older domestics, but they have many universal cats in verious sizes both normal and "race" you should be able to find something your looking for.

 

CATCO FTW. If I remember right all their cats are 50 state legal.