Application Summary: 1979-1993 Ford Mustang LX GL GLX Base GT L Ghia Turbo GT GT-350 20th Anniversary (Rear Lower) (Doors: 2 & Body: Hatchback, Convertible, Sedan, Coupe & Liter: 5.0, 2.3, 3.3, 4.2, 3.8, 2.8 & Cylinder: 8, 4, 6 & Block: V, L | Qualifier: Exhaust Modification May Be Necessary); 1979-1986 Mercury Capri GS Base L RS RS Turbo Ghia 5.0 Black Magic Crimson Cat (Rear Lower) (Body: Hatchback & Liter: 3.3, 5.0, 4.2, 3.8, 2.8, 2.3 & Cylinder: 4, 6, 8 & Block: L, V | Qualifier: Exhaust Modification May Be Necessary)