Anyone run high-flow Cats to reduce hydrocarbon exhaust smell?

My cam has significant overlap, so the car smells rich at idle even running at 14.5 A/F. I started researching what guys are doing to combat the smell, and found a lot of guys run the high flow race catalytic converters with very good results. Anyone have any experience with this. I have a convertible, so it is an issue on cruises.

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