2003 GMC SIERRA 1500 Mufflers

Muffler, Performance, 3.00 in. Center Inlet, Standard 3.00 in. Center Outlet without Tip, Oval Case, Reversible, 409 Stainless Steel, Natural, Each

Part Number: MPE-11219

4.53 out of 5 stars ( 19 )

Estimated Ship Date: Tomorrow

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Muffler, Ultra Flo Welded, 3 in. Inlet/3 in. Outlet, Stainless Steel, Each

Part Number: WLK-17223

4.65 out of 5 stars ( 17 )

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Muffler, Salute, Oval, 3.000 in. Inlet/3.000 in. Outlet, Stainless Steel, Natural, Each

Part Number: IMM-SA1229

4.7 out of 5 stars ( 27 )

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Muffler, 3.00 in. Inlet/3.00 in. Outlet, Stainless Steel, Natural, Each

Part Number: MPE-12649

4.6 out of 5 stars ( 5 )

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

Part Number: FLO-953047

4.79 out of 5 stars ( 14 )

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Muffler, 70 Series Big Block II, Oval, Stainless, 3 in. Center Inlet, 3 in. Offset Outlet, 22 in. Case Length

Part Number: FLO-853072

4.67 out of 5 stars ( 27 )

Estimated Ship Date: Tomorrow

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Muffler, Super Turbo, 3 in. Inlet/3 in. Outlet, Steel, Aluminized Steel, Each

Part Number: WLK-17673

3.57 out of 5 stars ( 7 )

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Muffler, SUV 50 Series, 3 in. Inlet/3 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-853057

4.92 out of 5 stars ( 12 )

Estimated Ship Date: Tomorrow

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Muffler, Turbo, 3.00 in. Offset Inlet/3.00 in. Center Outlet, 19 in. Length, Steel, Aluminized, Each

Part Number: IMM-16833CB

4.38 out of 5 stars ( 13 )

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Muffler, Vortex, 3.000 in. Inlet/3.000 in. Outlet, Steel, Gray Aluminized, Each

Part Number: IMM-88105CB

3.92 out of 5 stars ( 24 )

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Muffler, Super Turbo, 3 in. Inlet/Dual 2 1/2 in. Outlet, Steel, Aluminized, Each

Part Number: WLK-17674

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Muffler, Salute, Oval, 3.000 in. Inlet/Two 2.500 in. Outlet, Stainless Steel, Natural, Each

Part Number: IMM-SA2198

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

Muffler, Super 50 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Aluminized, Each

Part Number: FLO-53057

3.67 out of 5 stars ( 3 )

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Muffler, Big Block II 70 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Each

Part Number: FLO-53072

5.0 out of 5 stars ( 3 )

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Mufflers, Direct Fit SoundFX, Steel, Aluminized, 29.000 in. Overall Length, Chevy, GMC, Each

Part Number: WLK-18823

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

Muffler, Ultra Flo Welded, 3 in. Inlet/Dual 2 1/2 in. Outlet, Stainless Steel, Each

Part Number: WLK-17228

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Muffler, Salute, Oval, 3.000 in. Inlet/Two 3.000 in. Outlet, Stainless Steel, Natural, Each

Part Number: IMM-SA2298

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Muffler, Quiet-Flow 3, 2.625 in. Inlet/Outlet, Steel, Aluminized, Chevy, GMC, Each

Part Number: WLK-21423

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

Muffler, Xlerator Performance, Stainless Steel, Natural, Chevy, GMC, V6, V8, Each

Part Number: APH-XS2288

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Estimated Ship Date: May 11, 2026 if ordered today

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Muffler, Xlerator Performance, Stainless Steel, Natural, Chevy, Dodge, GMC, V6, V8, Each

Part Number: APH-XS2278

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 11, 2026 if ordered today

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

Part Number: WLK-21356

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Muffler, Pro, 3.000 in. Inlet/3.000 in. Outlet, Steel, Aluminized, Each

Part Number: IMM-7411CB

3.5 out of 5 stars ( 2 )

Estimated Ship Date: May 11, 2026 if ordered today

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Muffler, OE Replacement, Steel, Aluminized, Chevy, GMC, 6.0L, Each

Part Number: APH-2556

Not Yet Reviewed

Estimated Ship Date: May 8, 2026 if ordered today

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Muffler, OE Replacement, Steel, Aluminized, Cadillac, Chevy, GMC, Each

Part Number: APH-2306

4.5 out of 5 stars ( 2 )

Estimated Ship Date: May 11, 2026 if ordered today

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