Mufflers - Chambered Internal Construction - 12.00 Case Exterior Length (in.) - In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

SpinTech 6000 Pro Street Steel 3 Inch Muffler 6441

Muffler, 6000 Series Pro Street, Rectangular, Chambered, Steel, Aluminized, 3.00 in. Center Inlet/3.00 in. Center Outlet, Each

Part Number: SIH-6441

4.4 out of 5 stars ( 10 )

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

SpinTech 6000 Pro Street Steel 3 Inch Muffler 6443

Muffler, 6000 Series Pro Street, Rectangular, Chambered, Steel, Aluminized, 3.00 in. Offset Inlet/3.00 in. Center Outlet, Each

Part Number: SIH-6443

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

SpinTech 6000 Pro Street Steel 2.5 Inch Muffler 6331

Muffler, 6000 Series Pro Street, Rectangular, Chambered, Steel, Aluminized, 2.50 in. Center Inlet/2.50 in. Center Outlet, Each

Part Number: SIH-6331

4.82 out of 5 stars ( 11 )

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

SpinTech 6000 Pro Street Steel 2.5 Inch Muffler 6334

Muffler, 6000 Series Pro Street, Rectangular, Chambered, Steel, Aluminized, 2.50 in. Offset Inlet/2.50 in. Offset Outlet, Each

Part Number: SIH-6334

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

SpinTech 6000 Pro Street Steel 3 Inch Muffler 6444

Muffler, 6000 Series Pro Street, Rectangular, Chambered, Steel, Aluminized, 3.00 in. Offset Inlet/3.00 in. Offset Outlet, Each

Part Number: SIH-6444

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

SpinTech 6000 Pro Street Steel 2.5 Inch Muffler 6333

Muffler, 6000 Series Pro Street, Rectangular, Chambered, Steel, Aluminized, 2.50 in. Offset Inlet/2.50 in. Center Outlet, Each

Part Number: SIH-6333

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

SpinTech 6000 Pro Street Steel 3 Inch Muffler 6436

Muffler, 6000 Series Pro Street, Rectangular, Chambered, Steel, Aluminized, 3.000 in. Center Inlet/2.500 in. Dual Outlet, Each

Part Number: SIH-6436

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

SpinTech 6000 Pro Street Steel 3 Inch Muffler 6442

Muffler, 6000 Series Pro Street, Rectangular, Chambered, Steel, Aluminized, 3.00 in. Center Inlet/3.00 in. Offset Outlet, Each

Part Number: SIH-6442

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

SpinTech 6000 Pro Street Steel 2.5 Inch Muffler 6332

Muffler, 6000 Series Pro Street, Rectangular, Chambered, Steel, Aluminized, 2.50 in. Center Inlet/2.50 in. Offset Outlet, Each

Part Number: SIH-6332

Not Yet Reviewed

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

SpinTech 6000 Pro Street Steel 2.25 Inch Muffler 6222

Muffler, 6000 Series Pro Street, Rectangular, Chambered, Steel, Aluminized, 2.25 in. Center Inlet/2.25 in. Offset Outlet, Each

Part Number: SIH-6222

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

SpinTech 6000 Pro Street Steel 2.5 Inch Muffler 6335

Muffler, 6000 Series Pro Street, Rectangular, Chambered, Steel, Aluminized, 2.50 in. Offset Inlet/2.50 in. Offset Outlet, Each

Part Number: SIH-6335

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026