All 75's came with cats... If they are just looking to see if you have a cat and not sniff the tailpipe, you can take out the plug in the bottom of the cat and take out the pellets inside and put the plug back..
What I did ounce was take a muffler the same size as the cat and cut the two bent pipes off the cat and weld them on the muffle rso it fit right in and looked stock...
Automobile(s): 1970 Coupe DeVille, 2002 Eldorado Collector Series
Re: 75 eldo catalytic convertor
I can't believe they would actually sniff a '75. Anyway, they make hollow catalytic converters, and I'm pretty sure that by using the typical emissions cheats that you could pass the test without a functioning cat. How strict could the standards really be for a 36 year old car with a 500 cubic inch engine??