Flowmaster 50 Series Big Block Chambered Muffler 3-3.5" Dual/Offset - 530513

Product Description

Upgrade your heavy-duty truck, full-size SUV or tow rig with the Flowmaster 50 Series Big Block Muffler; the quietest muffler in Flowmaster’s lineup. Built with a large case size and internal tuning chamber, this muffler combines improved horsepower, torque and engine efficiency with impressive sound control even under heavy loads. It is constructed of 16-gauge aluminized steel and fully MIG welded for maximum durability in demanding conditions. Designed specifically for high-cubic-inch engines, heavy loads and large-cab vehicles, it excels at reducing interior resonance while maintaining a mild exterior tone. If you’re looking for a high-flow, heavy-duty muffler that delivers quiet comfort inside the cab and strong performance outside, this 50 Series Big Block is a top-choice upgrade.