1981 GMC Mufflers

Muffler, 40 Series, 2 1/2 in. Offset Inlet, 2 1/2 in. Offset Outlet, Chambered, Steel, Black, Each

Part Number: FLO-42543

4.91 out of 5 stars ( 44 )

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Muffler, FlowFX Series, 2.5 in. Inlet/2.5 in. Outlet, Stainless Steel, Natural, Each

Part Number: FLO-71236

4.75 out of 5 stars ( 28 )

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Muffler, Super 44 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-942548

4.89 out of 5 stars ( 28 )

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Muffler, Super 44 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842548

4.77 out of 5 stars ( 26 )

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Muffler, Delta Flow 50 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-942553

4.73 out of 5 stars ( 22 )

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Muffler, Delta Flow 40 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-942543

4.64 out of 5 stars ( 11 )

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Muffler, American Thunder 40 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Aluminized Steel, Black, Each

Part Number: FLO-42443

4.92 out of 5 stars ( 12 )

Estimated Ship Date: Today

Muffler, Super 40 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-952548

4.75 out of 5 stars ( 4 )

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Muffler, FlowFX Series, 3 in. Inlet/2.5 in. Outlets, Stainless Steel, Natural, Each

Part Number: FLO-72198

4.29 out of 5 stars ( 14 )

Estimated Ship Date: Today

Muffler, Super 10 Series, 2.5 in. Inlet/2.5 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842518

4.82 out of 5 stars ( 33 )

Estimated Ship Date: Today

Muffler, Glasspack, 2.250 in. Inlet/2.250 in. Outlet, Steel, Red, Each

Part Number: IMM-87510CB

4.88 out of 5 stars ( 25 )

Estimated Ship Date: Today

Muffler, Quiet-Flow 3, 2 1/2 in. Inlet/2 in. Outlet, Steel, Aluminized, Chevy, GMC, Pontiac, Each

Part Number: WLK-21784

4.86 out of 5 stars ( 14 )

Estimated Ship Date: Today

Muffler, American Thunder 40 Series, 3 in. Inlet/Dual 2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-430402

4.73 out of 5 stars ( 22 )

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Muffler, 40 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-8042543

4.92 out of 5 stars ( 12 )

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Muffler, Delta Flow 40 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842543

4.5 out of 5 stars ( 4 )

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Muffler, Super 50 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Steel, Black, Aluminized, Each

Part Number: FLO-52456

5.0 out of 5 stars ( 2 )

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Muffler, 40 Series, 3 in. Inlet/2.5 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-80430402

5.0 out of 5 stars ( 8 )

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Muffler, Heavy-Duty, Oval, Steel, Aluminized, 4.00 in. Offset Inlet/Outlet, 34.00 in. Overall Length, Each

Part Number: WLK-22004

5.0 out of 5 stars ( 2 )

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Muffler, Delta Flow 40 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842443

5.0 out of 5 stars ( 1 )

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Muffler, Delta Flow 50 Series, 2 1/2 in. Inlet/Dual 2 in. Outlet, Steel, Black, Each

Part Number: FLO-9425502

5.0 out of 5 stars ( 5 )

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Muffler, Super 50 Series, 2 1/2 in. Inlet/Dual 2 1/4 in. Outlet, Steel, Black, Aluminized, Each

Part Number: FLO-525552

5.0 out of 5 stars ( 2 )

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Muffler, Delta Flow 40 Series, 3 in. Inlet/Dual 2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-9430402

5.0 out of 5 stars ( 2 )

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Muffler, Quiet-Flow 3, 2 1/2 in. Inlet/2 1/4 in. Outlet, Steel, Aluminized, Chevy, Dodge, Ford, GMC, Plymouth

Part Number: WLK-21151

5.0 out of 5 stars ( 3 )

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Muffler, Tru-Fit, Steel, Aluminized, 2.0 in. Inlet, 2.0 in. Outlet, 25.0 in. Length, Each

Part Number: WLK-18101

Not Yet Reviewed

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Muffler, Super 40 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Steel, Black, Each

Part Number: FLO-952446

5.0 out of 5 stars ( 2 )

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