Mufflers

Muffler, Pro Series, 4.0 in. Inlet/4.0 in. Outlet, Steel, Black, 24.0 in. Length, Each

Part Number: FLO-14020100

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Muffler, Ultra Flo Welded, 4 in. Inlet/4 in. Outlet, Stainless Steel, Each

Part Number: WLK-17537

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Today

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• $20.00 Summit Bucks

Muffler, Heavy-Duty, Round, Steel, Aluminized, 4.00 in. Offset Inlet/Outlet, 31.50 in. Overall Length, Each

Part Number: WLK-21969

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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• $20.00 Summit Bucks

Muffler, Heavy Duty, 4 in. Inlet/4 in. Outlet, Stainless Steel, Natural, Each

Part Number: WLK-22572

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

• $20.00 Summit Bucks

Muffler, Race Bullet, 4 in. Inlet/4 in. Outlet, Steel, Aluminized, Each

Part Number: WLK-24217

4.83 out of 5 stars ( 18 )

Estimated Ship Date: Today

• $20.00 Summit Bucks

Muffler, Quiet Tone Series, Round, Steel, Aluminized, 4 in. Center Inlet/Outlet, 30 in. Length, Each

Part Number: MBR-M1004A

4.79 out of 5 stars ( 19 )

Estimated Ship Date: Today

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Muffler, Maximum Flow, 4 in. Inlet/4 in. Outlet, 14 in. Case Length, Steel, Aluminized, Each

Part Number: HOK-21609HKR

4.36 out of 5 stars ( 14 )

Estimated Ship Date: Today

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Muffler, Ultra Flo Welded, 4 in. Inlet/4 in. Outlet, Stainless Steel, Each

Part Number: WLK-17225

4.8 out of 5 stars ( 5 )

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• $20.00 Summit Bucks

Muffler, Quiet-Flow SS, Oval, Offset/Offset, Stainless Steel, Natural, Dodge, Each

Part Number: WLK-54637

4.52 out of 5 stars ( 21 )

Estimated Ship Date: Today

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• $20.00 Summit Bucks

Muffler, Delta Force One Chamber, 4 in. Inlet/4 in. Outlet, Steel, Black, Each

Part Number: FLO-954010-12

Not Yet Reviewed

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Mufflers, Heavy-Duty, Steel, Aluminized, 40.000 in. Overall Length, Mack, Each

Part Number: WLK-21838

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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• $20.00 Summit Bucks

Muffler, 4.00 in. Center Inlet, 4.00 in. Center Outlet, 30.00 in. Overall length, Round, Aluminized Steel, Universal, Each

Part Number: MBR-M20681

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Muffler, Heavy Duty, 4 in. Inlet/4 in. Outlet, Stainless Steel, Each

Part Number: WLK-21172

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

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• $20.00 Summit Bucks

Muffler, Replacement, 4.0 in. Inlet/4.0 in. Outlet, 37.0 in. Length, Steel, Natural, Each

Part Number: WLK-21471

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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• $20.00 Summit Bucks

Mufflers, Heavy-Duty, Steel, Aluminized, 39.000 in. Overall Length, Blue Bird, Chevy, GMC, Each

Part Number: WLK-22643

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 8, 2025 if ordered today

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• $20.00 Summit Bucks
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Muffler, Outlaw, Shorty, 4 in. Inlet Diameter, 4 in. Outlet Diameter, Steel, Black, Each

Part Number: FLO-15440S

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Muffler, TruckEx, Steel, Aluminized, Blue Bird, Each

Part Number: APH-3666

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

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• Oversize $7.99
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Mufflers, Race, Round Case, Steel, Black, Single 4.00 in. Center Inlet/Outlet, 8.000 in. Overall Length, Each

Part Number: SCH-84040

Not Yet Reviewed

Estimated Ship Date: Today

Mufflers, M-80, Round Case, Steel, Red Powdercoated, Single 4.00 in. Center Inlet/Outlet, 19.000 in. Overall Length, Each

Part Number: IMM-M80400

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Muffler, Glasspack, 4.000 in. Inlet/4.000 in. Outlet, Steel, Red, Each

Part Number: IMM-87528CB

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Muffler, OE Replacement, Steel, Aluminized, Dodge, 5.9L, Diesel, Each

Part Number: APH-2519

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 5, 2025 if ordered today

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Walker Heavy Duty Muffler

Part Number: WLK-22664

Not Yet Reviewed

Estimated Ship Date: Today

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• $20.00 Summit Bucks

Walker Heavy Duty Muffler

Part Number: WLK-22642

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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• Free Shipping
• $20.00 Summit Bucks
• Special Order

Walker Heavy Duty Muffler

Part Number: WLK-22449

Not Yet Reviewed

Estimated Ship Date: Dec 8, 2025 if ordered today

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• Free Shipping
• $20.00 Summit Bucks
• Special Order