Applications:Small Block Fords 1986-1993 Mustang 5.0L or 260-289 302-351Short description:--Stainless Steel shorty type exhaust headers--Manufactured from 16 gauge. 1 5/8" OD diameter heavy duty tubing.--Thick 3/8" flanges which can resist warpage.--Flange has a flat surface which can greatly improve gasket sealing. 2 1/2" collectors.Package:Headers, Exhaust Gaskets, and all necessary Bolts