1979 GMC K1500 Mufflers Mufflers & Resonators Exhaust - In Stock Filter Options - Vendor In Stock Filter Options

Flowmaster 50 Series Delta Flow 409 Stainless Steel 2.5 Inch Muffler 842553

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 1/12/2026

...Loading

Estimated Ship Date: Monday 1/12/2026

Flowmaster Super 40 Series Delta Flow Steel 2.5 Inch Muffler 952548

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 )

Estimated Ship Date: Monday 1/12/2026

...Loading

Estimated Ship Date: Monday 1/12/2026

Flowmaster 70 Series Big Block II Steel 2.5 Inch Muffler 52573

Muffler, Big Block II 70 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-52573

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 1/12/2026

...Loading

Estimated Ship Date: Monday 1/12/2026

Flowmaster Super 40 Series Delta Flow 409 Stainless Steel 2.5 Inch Muffler 852548

Muffler, Super 40 Series, Oval, Stainless, Offset 2.5 in. Inlet/Outlet, 13.5 in. Case Length, Each

Part Number: FLO-852548

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 1/12/2026

...Loading

Estimated Ship Date: Monday 1/12/2026

Walker Quiet-Flow 3 Steel 2.5 Inch Muffler 21784

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

Part Number: WLK-21784

4.85 out of 5 stars ( 13 )

Estimated Ship Date: Monday 1/12/2026

...Loading

Estimated Ship Date: Monday 1/12/2026

Flowmaster Super 50 Series Performance Steel 2.5 Inch Muffler 52558

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

Part Number: FLO-52558

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/12/2026

...Loading

Estimated Ship Date: Monday 1/12/2026

Walker Direct-Fit SoundFX Steel 2.5 Inch Muffler 18293

Muffler, SoundFX, Steel, Aluminized, 2.5 in. Inlet, 2.0 in. Outlet, 26.0 in. Length, Each

Part Number: WLK-18293

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Monday 1/12/2026

...Loading

Estimated Ship Date: Monday 1/12/2026

Flowmaster Super 40 Series Delta Flow Steel 2.25 Inch Muffler 952448

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

Part Number: FLO-952448

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

...Loading

Estimated Ship Date: Monday 1/12/2026

AP Exhaust MSL Maximum Steel 2.5 Inch Muffler 700051

AP Exhaust MSL Maximum Steel 2.5 Inch Muffler 700051

Muffler, MSL, Steel, Aluminized, GMC, Chevy,Each

Part Number: APH-700051

Not Yet Reviewed

Estimated Ship Date: Jan 28, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 28, 2026 if ordered today

AP Exhaust OE Replacement Steel 2.5 Inch Muffler 2943

Muffler, OE Replacement, Steel, Aluminized, Chevy, GMC, L6, V6, V8, Each

Part Number: APH-2943

Not Yet Reviewed

Estimated Ship Date: Jan 28, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 28, 2026 if ordered today

AP Exhaust MSL Maximum Steel 2.5 Inch Muffler 6505

Muffler, MSL, Steel, Aluminized, Chevy, GMC, 250, 454, Each

Part Number: APH-6505

Not Yet Reviewed

Estimated Ship Date: Jan 28, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 28, 2026 if ordered today

AP Exhaust Challenge Steel 2.5 Inch Muffler 2538

Muffler, Challenge, Steel, Aluminized, Chevy, GMC, Each

Part Number: APH-2538

Not Yet Reviewed

Estimated Ship Date: Jan 28, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 28, 2026 if ordered today