Cataylic converter

Firstly - IF the state you live in has a required vehicle inspection program - it likely will not pass without the emissions components present and appear to be operational .. IF you live in a state that has required emissions testing - it will not pass period .. Furthermore - it is unlawful to remove emissions related components. Now - before we can offer any help with the “gas smell from tailpipe” - we will need the present trouble code numbers - - disregarding the codes present due to missing catalytic converter of course.. Trouble codes can be gathered by using the check engine light flash method - Google > get trouble codes from OBD 1 GM .. You'll get instructions on the resulting page - plus how to YouTube videos.