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JBA Cat4Ward headers for 2007–2014 Ford GT500 5.4/5.8L 4V feature 1-5/8" primaries in raw 409 stainless steel. JBA shorty headers reduce exhaust restriction compared with stock manifolds to improve power and efficiency, and the Firecone collector uses race-proven design to enhance torque where you drive most. Included are factory-style emission connections, high-quality hardware, 3/8" machined flanges, oversized ports, mandrel-bent tubing and reinforced collector domes.
JBA 07-14 Ford GT500 5.4/5.8L 4V 1-5/8in Primary Raw 409SS Cat4Ward Header
