Perhaps a moderator will move this thread to the Exhaust sub-forum.
Removing a functional catalyst, or removing but not replacing a non-functional catalyst is against Federal law. It is illegal in 50 states, and probably US Territories and Possessions. If the Feds want you, you've given them a perfect opportunity.
You're required to have the same number of catalysts, in the same location as the vehicle was engineered with, unless you've got an "approved" modification complete with EPA or CARB exemption sticker.
Removing a functional catalyst, or removing but not replacing a non-functional catalyst is against Federal law. It is illegal in 50 states, and probably US Territories and Possessions. If the Feds want you, you've given them a perfect opportunity.
You're required to have the same number of catalysts, in the same location as the vehicle was engineered with, unless you've got an "approved" modification complete with EPA or CARB exemption sticker.