They have been installed on all vehicles since 1975.
The first year for Catalytic converters was 1975They were first required on all cars in 1975.
1975 and later.
1975
in 1975
1975
They where required for the 1975 model year.
1975
Any vehicle sold in the U.S. since 1975.
In the USA original equipment catalytic converters are generally covered under the 8 year, 80,000 mile federal emissions warranty.
1-3 it depands on the year
1983
What year, what size engine? 2004-2008 Chevy impala