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does antone know in mass. do they go by the year of the vehicle or the engine for insp. i am putting a 4.6 in my 54 f-100 and didn't know if i will have to install a cat. conv.
does antone know in mass. do they go by the year of the vehicle or the engine for insp. i am putting a 4.6 in my 54 f-100 and didn't know if i will have to install a cat. conv.
I have never done this but I believe they just go by the year. If it didn't come with a Cat then you don't need it.