GMC SIERRA 2500 HD Mufflers

Muffler, 50 Series Heavy-Duty, Oval, Stainless, Black, 3.5 in. Offset Inlet/Outlet, 18 in. Case Length, Each

Part Number: FLO-853558

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

• Free Shipping

Muffler, FlowFX, 3.50 in. Inlet, 3.50 in. Outlet, 409 Stainless Steel, Natural, Center Inlet, Center Outlet, Chevy, GMC, 6.6L/401 Engine, Each

Part Number: FLO-718155

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Muffler, Big Block 50 Series, Dual 3 in. Inlet/3 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-530513

4.43 out of 5 stars ( 23 )

Estimated Ship Date: Today

• Free Shipping

Muffler, Quiet-Flow, Round, Steel, Aluminized, Chevy, GMC, Each

Part Number: WLK-21753

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Mufflers, Muffler - CHALLENGE

Part Number: APH-2644

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Mufflers, Direct-Fit, 3.50 in. Inlet/Outlet, Steel, Aluminized, Oval Case, 31.00 in. Overall Length, Chevrolet, GMC, Each

Part Number: BRE-100-7279

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order