1979 PONTIAC FIREBIRD Mufflers

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

Part Number: FLO-42543

4.9 out of 5 stars ( 42 )

Estimated Ship Date: Monday 9/15/2025

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

Part Number: FLO-842553

4.63 out of 5 stars ( 19 )

Estimated Ship Date: Monday 9/15/2025

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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 )

Estimated Ship Date: Monday 9/15/2025

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

Part Number: FLO-43043

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Monday 9/15/2025

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: Monday 9/15/2025

Muffler, Delta Flow 50 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Each

Part Number: FLO-943053

4.61 out of 5 stars ( 23 )

Estimated Ship Date: Monday 9/15/2025

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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: Monday 9/15/2025

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

Part Number: FLO-842548

4.75 out of 5 stars ( 24 )

Estimated Ship Date: Monday 9/15/2025

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Muffler, Super 44 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Each

Part Number: FLO-943048

4.89 out of 5 stars ( 19 )

Estimated Ship Date: Monday 9/15/2025

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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

4.6 out of 5 stars ( 10 )

Estimated Ship Date: Monday 9/15/2025

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Muffler, Super 44 Series, 3 in. Inlet/3 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-843048

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Monday 9/15/2025

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Muffler, Super 44 Series, 2.25 in. Inlet/2.25 in. Outlet, Steel, Black, Each

Part Number: FLO-942448

4.88 out of 5 stars ( 16 )

Estimated Ship Date: Monday 9/15/2025

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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 )

Estimated Ship Date: Monday 9/15/2025

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Muffler, Delta Flow 50 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Steel, Black, Each

Part Number: FLO-942453

4.9 out of 5 stars ( 10 )

Estimated Ship Date: Monday 9/15/2025

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Muffler, 80 Series, 2 1/2 in. Inlet/Dual 2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-42583

4.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 9/15/2025

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

Part Number: FLO-942043

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Monday 9/15/2025

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Muffler, 80 Series, Crossflow, Internal Chamber, Dual Style, 2 1/2 in. Inlet/Outlet Each End, 18 x 9 3/4 x 4 in. Oval Case, Steel, Black, GM, Each

Part Number: FLO-42582

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 9/15/2025

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Muffler, 80 Series, Crossflow, 409 Stainless Steel, Single 2.5 in. Offset Inlet, Dual 2.5 in. Offset Outlets, Each

Part Number: FLO-842583

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Monday 9/15/2025

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Muffler, Super 44 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842448

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 9/15/2025

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

Part Number: FLO-943043

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 9/15/2025

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

Part Number: FLO-942443

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Monday 9/15/2025

Muffler, Aero Chamber, 3 in. Inlet/Dual 2 1/2 in. Outlet, Steel, Aluminized, Chevy, Pontiac, Each

Part Number: HOK-21729HKR

4.47 out of 5 stars ( 17 )

Estimated Ship Date: Monday 9/15/2025

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Muffler, Extreme, 2.500 in. Inlet/2.500 in. Outlet, Steel, Red, Each

Part Number: IMM-7480CB

4.4 out of 5 stars ( 10 )

Estimated Ship Date: Monday 9/15/2025

Muffler, Super Turbo, 2 1/2 in. Inlet/Dual 2 1/2 in. Outlet, Steel, Aluminized, Chevy, Pontiac, Each

Part Number: WLK-17739

3.71 out of 5 stars ( 7 )

Estimated Ship Date: Monday 9/15/2025

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Muffler, Quiet-Flow 3, 2 in. Inlet/2 1/4 in. Outlet, Steel, Aluminized, Chevy, Pontiac, Each

Part Number: WLK-21598

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 9/15/2025