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50 Series HD
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FlowmasterFlowmaster 50 Series HD Chambered Muffler 50 H.D. Stainless Steel - 3.5 in. Offset In/3.50 in. Offset Out - Moderate SoundBackordered
Est. Ship Date: 12/07/2026
$302.95
FlowmasterFlowmaster 50 Series HD Chambered Muffler 50 H.D. - 3.00 Offset In / 3.00 Center Out - Moderate SoundIn Stock
$277.95
FlowmasterFlowmaster 50 Series HD Chambered Muffler 50 H.D. - 3.00 Center In / 2.50 Dual Out - Moderate SoundIn Stock
$277.95
FlowmasterFlowmaster 50 Series HD Chambered Muffler 50 H.D. - 3.50 Offset In / 3.50 Offset Out - Moderate SoundBackordered
Est. Ship Date: Coming Soon
$277.95
FlowmasterFlowmaster 50 Series HD Chambered Muffler 50 H.D. Stainless Steel - 2.50 Dual In / 2.50 Dual Out - Moderate SoundIn Stock
$327.95
FlowmasterFlowmaster 50 Series HD Chambered Muffler 50 H.D. - 3.00 Offset In / 2.50 Dual Out - Moderate SoundBackordered
Est. Ship Date: 09/01/2026
$277.95
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50 Series HD
The 50 Series HD Heavy Duty Muffler is built tough for trucks, featuring 4.00-inch internal components and a large case size. Designed to boost mileage, torque, horsepower, and towing power, it enhances acceleration for both gas and diesel applications. Perfect for late-model trucks used in extreme conditions, the 50 Series HD delivers outstanding performance and durability, making it the ideal choice for heavy-duty applications.