Jones Exhaust SD726-64C Super Duty Muffler 3 Inlet, 2.5 Outlet crown-automotive 8L V6 1972 - 1978

8L V6 1972 - 1978 Pontiac Firebird Esprit 350/5

4L V8 1966 - 1968 Ford Thunderbird Base 390/6

and has a deep aggressive exterior tone with a moderate interior sound level

minimizing the potential for transmission damage

Jones Exhaust SD726-64C Super Duty Muffler 3 Inlet, 2.5 Outlet crown-automotive 8L V6 1972 - 1978Overview: Jones Exhaust Super Duty Mufflers are designed for high flow exhaust applications. These mufflers feature straight through louvered cores to maximize exhaust flow. The aluminized steel construction provides excellent corrosion resistance and superior service life. Features Maximizes exhaust flow Straight through louvered cores Aluminized steel construction Application: Year Make Model Trim and Drive Type Engine Size Universal Specifications: