GMC Flowmaster Parts and Accessories

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

Part Number: FLO-8042543

4.92 out of 5 stars ( 12 )

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

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Exhaust Tip, Dual, Round, Weld-on, Stainless, Polished, 2.5 in. Inlet I.D., 10 in. Length, Each

Part Number: FLO-15391

4.92 out of 5 stars ( 24 )

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

Muffler, Super 44 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842446

4.86 out of 5 stars ( 7 )

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

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Exhaust Tip, Stainless, Polished, Slant/Rolled Edge, 2.5 in. Inlet, 3 in. Outlet, 12 in. Long, Each

Part Number: FLO-15361

4.48 out of 5 stars ( 23 )

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

Muffler, FlowFX, 3.50 in. Inlet, 3.50 in. Outlet, 409 Stainless Steel, Natural, Center Inlet, Center Outlet, Chevy, GMC, 6.6L/401 Engine, Each

Part Number: FLO-718155

Not Yet Reviewed

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

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Intermediate Pipes, Manifold Downpipe, Stainless Steel, Natural, 2.50 in. O.D., Chevy, GMC, Pair

Part Number: FLO-81072

5.0 out of 5 stars ( 8 )

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

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Cold Air Intake, Delta Force Cold Air Kit, Black Plastic Tube, Red Cotton Gauze Filter, Black Heat Shield, Chevy, GMC, 6.6L Diesel, Kit

Part Number: FLO-615167

Not Yet Reviewed

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

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Exhaust System, Force II, Cat-Back, 3.0 in Diameter, Single, Stainless Steel, Natural, Rear Exit, 3.5 in. Polished Tip, Chevy, 5.3L, Kit

Part Number: FLO-817949

Not Yet Reviewed

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

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Muffler, SUV 50 Series, Dual 2 1/4 in. Inlet/ 3 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-8524553

4.78 out of 5 stars ( 9 )

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

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Exhaust Systems, Outlaw Extreme, 409 Stainless Steel, Cat-Back, Black, 3 in. Diameter, Chevrolet, GMC, Kit

Part Number: FLO-817965

Not Yet Reviewed

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

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

Part Number: FLO-52571

4.89 out of 5 stars ( 9 )

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

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

Part Number: FLO-8042441

4.67 out of 5 stars ( 6 )

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

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

Part Number: FLO-53058

3.6 out of 5 stars ( 5 )

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

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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: Monday 3/23/2026 if shipped by air

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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 3/23/2026 if shipped by air

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Muffler, Delta Flow 50 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842453

4.8 out of 5 stars ( 5 )

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

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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

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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 )

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

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Turbo Downpipe, Steel, Aluminized, 3 in. Diameter, Chevy, GMC, 6.5L, Diesel, Kit

Part Number: FLO-17220

4.0 out of 5 stars ( 15 )

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

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Exhaust System, Cat-back, FlowFX, 409 Stainless Steel, Single Exit, Chevrolet, GMC, Kit

Part Number: FLO-717874

Not Yet Reviewed

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

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Muffler, Delta Flow 40 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842443

5.0 out of 5 stars ( 1 )

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

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Muffler, 40 Series, 3 in. Inlet/2.5 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-80430402

5.0 out of 5 stars ( 8 )

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

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

Part Number: FLO-952446

5.0 out of 5 stars ( 2 )

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

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Muffler, Delta Flow 40 Series, 3 in. Inlet/Dual 2 1/2 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-8430402

5.0 out of 5 stars ( 3 )

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

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Exhaust System, Cat-back, FlowFX, 409 Stainless Steel, 4 in. Black Ceramic Coated Tips, Passenger Side Exit, Chevy, GMC, Kit

Part Number: FLO-718188

1.67 out of 5 stars ( 3 )

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

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