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JBA Tri-Y Headers for 1965–1970 Ford Mustang 260–302 SBF use a 1-1/2" to 1-3/4" primary sizing in raw 409 stainless to balance midrange torque and top-end power. These tri-y designs feature large mandrel-bent primaries, oversized ports, 3/8" thick flanges and the patented JBA Firecone® merged collector for smooth exhaust flow and improved scavenging. O2 sensor provisions and hardware are included for solid installation.
JBA 65-70 Ford Mustang 260-302 SBF 1-1/2in-1-3/4in Primary Raw 409 Tri Y Header
