Flowmaster 70 Series Big Block II Center/Dual Oval Muffler; 3-Inch Inlet/2.25-Inch Outlet (Universal; Some Adaptation May Be Required)

Iconic Performance Muffler. The Flowmaster 70 Series Big Block II Center/Dual Oval Muffler with a 3-Inch Inlet and 2.25-Inch Outlet delivers an exceptional balance of sound, power, and efficiency designed for trucks, SUVs, motorhomes, and performance vehicles. It improves horsepower and torque while providing a mild, stock-like exhaust tone ideal for street and strip applications, all while enhancing engine efficiency.

Construction and Appearance. Built from durable 16-gauge aluminized steel, this chambered muffler incorporates Flowmaster’s Delta Flow® technology and an enlarged case for superior sound control. Fully MIG welded for maximum durability, it is finished with high-temperature black paint to resist corrosion and provide a sleek, long-lasting appearance.

Installation. This universal-fit muffler is designed for slip-fit clamp-on or weld-on connection and uses new hangers (not included) for mounting. Moderate adaptation may be required during installation, but typically no special drilling is necessary, making it accessible for most professional installers and experienced enthusiasts.

Application. Designed for universal fitment with some adaptation needed depending on the vehicle setup. It is suitable for classic muscle cars, street/strip vehicles, trucks, and SUVs where space allows and performance upgrades are desired.

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