1967-1970 Ford Mustang with V8 engine, 2.5" pipes - Aggressive soundFor the person who is looking for a true dual Crossmember Back exhaust system with an moderate to aggressive exhaust tone. With an easy fit in mind, these systems are constructed from 16 gauge mandrel bent aluminized steel tubing with a built in H pipe crossover, a pair of specially selected Super 44 Series performance mufflers for a deep powerful sound. The 2. 50 inch mandrel bent tailpipes feature a slight turndown at the rear bumper and the system