For 64-70 Ford SBF Mustang 289 302 351 Long Tube Stainles Exhaust Headers Tube Diameter (in):1 5/8 in.
Collector Attachment:3-Bolt Flange
Collector Diameter:3.000 in.
Primary Tube Gauge:16 Gauge
3/8" flanges and 3" collectors
Flange Thickness (in):5/16 Ford Sb 289 302 351 Windsor Mustang 1964-1970
For 1964-1970 Ford Mustang with Small Block 260, 289, 302 and 351 engines(except 1966 Ford Mustang,1969Ford Mustang)