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Muffler, Big Block II 70 Series, 3 in. Inlet/Dual 2 1/4 in. Outlets, Steel, Black, Each

These 70 Series Big Block II mufflers are designed around a large case for maximum volume and efficiency. They're 2 in. narrower than the original Big Block muffler, making them easier to install into tight areas. Other features include a mild, mellow exhaust tone and a resonant tuning chamber for reduced interior sound levels.