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Part #: 168567 168567 CATALYST



Are you looking to unleash the enormous mid-range power in your 550? We recommend installation of better, modern, metal-core high performance catalytic converters instead of the factory OEM item. Our HyperFlow converters cost 1/2 as much as OEM ones, and produce substantially more power with less heat generation. The HyperFlow converter for the 550 can be found here: F15508/9 Converter