Ford BA BF V8 Sedan 2.5in Dual CatBack Hotdog/Muffler2. 5 Dual Cat Back Exhaust BA BF Falcon V8 If you want your V8 Falcon to sound and feel right, this is where you start. This 2. 5 inch dual cat back system replaces everything after the cats, freeing up flow while keeping things balanced for street use. Medium noise level means a proper V8 note without being over the top. Clean, deep tone with no harshness. Built from Stainless Steel and designed with a dual pipe setup, it gives better breathing and a