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The JBA Cat4Ward header for 1999–2002 GM trucks with 6.0L LS engines without A.I.R. and with EGR is finished in silver and built from mandrel-bent 1-5/8" primaries to improve flow and midrange torque. It uses JBA's Firecone collector, 3/8" machined flanges with oversized ports, extra-thick collector domes and includes factory-style emission connections and quality hardware for a professional installation.
JBA 99-02 GM Truck 6.0L LS w/o A.I.R. w/EGR 1-5/8in Primary Silver Ctd Cat4Ward Header
