GMC Mufflers

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 3/23/2026 if shipped by air

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 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

• Free Shipping

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 3/23/2026 if shipped by air

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

Part Number: WLK-21169

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

Muffler, Tru-Fit Series, Steel, Aluminized, 2.50 in. Inlet/2.00 in. Outlet, Each

Part Number: WLK-18177

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/23/2026 if shipped by air

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

Estimated Ship Date: Monday 3/23/2026 if shipped by air

Muffler, MSL, Chevy, GMC, Each

Part Number: APH-6590

Not Yet Reviewed

Estimated Ship Date: Apr 7, 2026 if ordered today

• Drop Ship
• Special Order

Muffler, SoundFX, 2.000 in. Inlet/Outlet, Oval, Steel, Aluminized, Chevy, GMC, Cadillac, Each

Part Number: WLK-18985

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

• Drop Ship
• Special Order

Muffler, MSL, Chevy, GMC, Each

Part Number: APH-700065

Not Yet Reviewed

Estimated Ship Date: Monday 3/23/2026 if shipped by air

Muffler, MSL, Steel, Aluminized, Buick, Chevy, GMC, Oldsmobile, Pontiac, V6, V8, Each

Part Number: APH-6540

Not Yet Reviewed

Estimated Ship Date: Apr 8, 2026 if ordered today

• Drop Ship
• Special Order

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

Part Number: APH-6505

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

• Drop Ship
• Special Order

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

Part Number: APH-2538

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

• Drop Ship
• Special Order

Mufflers, Direct-Fit SoundFX, Steel, Aluminized, 23.75 in. Overall Length, Buick, Chevrolet, Dodge, GMC, Oldsmobile, Pontiac, Each

Part Number: WLK-18275

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

• Drop Ship
• Special Order

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

Part Number: WLK-22171

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Apr 13, 2026 if ordered today

• Drop Ship
• Special Order

Muffler, SoundFX, 2 1/4 in. Inlet/2 in. Outlet, Steel, Aluminized, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: WLK-18345

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 13, 2026 if ordered today

• Drop Ship
• Special Order

Muffler, Tru-Fit Series, Steel, Aluminized, 2.25 in. Inlet/2.00 in. Outlet, Each

Part Number: WLK-18107

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

• Drop Ship
• Special Order

Muffler, OE Replacement, Steel, Aluminized, Buick, Chevy, GMC, Oldsmobile, Pontiac, V6, V8, Each

Part Number: APH-3006

Not Yet Reviewed

Estimated Ship Date: Apr 8, 2026 if ordered today

• Drop Ship
• Special Order

Muffler, OE Replacement, Steel, Aluminized, Buick, Chevy, GMC, Oldsmobile, Pontiac, V8, Each

Part Number: APH-3005

Not Yet Reviewed

Estimated Ship Date: Apr 8, 2026 if ordered today

• Drop Ship
• Special Order

Mufflers, Direct-Fit, 2.50 in. Single Inlet/2.00 in. Dual Outlet, Steel, Aluminized, Oval Case, 32.25 in. Overall Length, Chevrolet, Ford, GMC, Each

Part Number: BRE-100-5140

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Muffler, 2.50 in. Center Inlet, 2.00 in. Dual Outlet, 25.50 in. Overall Length, Oval, Reversible, Steel, Natural, Universal, Each

Part Number: BRE-100-5132

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Mufflers, Direct-Fit, Single Inlet, 2.00 in. Dual Outlet, Steel, Aluminized, Oval Case, 29.00 in. Overall Length, Chevrolet, GMC, Each

Part Number: BRE-100-5335

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Muffler, OE Replacement, Steel, Aluminized, Chevy, GMC, 5.0, 5.7L, Each

Part Number: APH-3123

Not Yet Reviewed

Estimated Ship Date: Apr 9, 2026 if ordered today

• Drop Ship
• Special Order

Muffler, MSL, Steel, Aluminized, Chevy, GMC, 5.0, 5.7L, Each

Part Number: APH-6557

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 9, 2026 if ordered today

• Drop Ship
• Special Order

Muffler, SoundFX, 2 1/2 in. Inlet/2 in. Outlet, Steel, Aluminized, Chevy, GMC, C/K-Series Pickup, Each

Part Number: WLK-18344

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

• Drop Ship
• Special Order