These Stainless Works long‑tube headers are listed for 1979–1993 Ford Mustang applications and feature 2‑inch primaries as specified in the product text. Intended to replace restrictive factory manifolds, the headers use larger primary tubing to aid exhaust flow; the description references AFR 165 and 185. Confirm compatibility with your vehicle and remaining exhaust components when planning installation.
Stainless Works 79-93 Ford Mustang Headers -2 in Primaries AFR 165,185