Has anyone out there converted their early '80s Imperial (or Cordoba-like mine-, Fifth Avenue, etc.) to dual exhausts? While on vacation, I'm having some exhaust work done to my Cordoba and have just learned that the Y-pipe and forward catalytic convertors are shot. None are available anymore, and my mechanic has suggested converting to dual exhausts with a catalytic convertor on each, and then two mufflers, obviously. Is this feasible on these cars? I also suggested fashioning a new y-pipe and omitting the front catalytic convertors. My concern is what unintended consequences might develop by having two tailpipes. I don't think there are the cavities in the floor pan for two rear catalytic convertors and mufflers, nor room for an additional tailpipe on the drivers side. How about routing two on the passenger side? Any assistance would be greatly appreciated as soon as possible. Thanks so much for y'all's guidance. Neal Herman 1959 Imperial Crown 1972 Buick Riviera 1983 Chrysler Cordoba