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The Cat4Ward header for 2016–2022 Nissan 5.6L VK56VD uses 1-3/4" primaries to open exhaust flow for larger-displacement engines. Constructed from 409 stainless, it features JBA's Firecone collector, mandrel-bent tubes, oversized ports and thick machined flanges. Factory-style emission connections and high-quality hardware are supplied to support a professional, sealed installation.
JBA 16-20 Nissan 5.6L VK56VD 1-3/4in Primary Raw 409SS Cat4Ward Header
