Well, this topic went interesting places.
You cannot compare FPR'* on a S1 and S2 L67 very easily, as they are in TOTALLY different locations.
Nor can you see the S1 L67 FPR from the front of the engine or even the rear from most angles. S1 L67 FPR'* are behind the TB on the rear of the fuel rail. IN the rail.
See the white line coming out of the brass fitting at the top of the pic? It'* heading to the rear of the engine compartment towards the FPR on a 95 SLE/SC.
See the shiny little bugger peeking out from under the engine cover just to the right of the top plug wire boot? That'* the FPR on the S2 L67.
The number one cause of a clogged cat is AGE. Is it original?
#2 is the O2 sensor. How old is it?
If it'* the FPR drooling, what does the O2 sensor think? You should have a rich condition. If not, the O2 sensor is very tired.
Let'* spend some time troubleshooting this and calling out the correct locations for components.