Availability

- In Stock Items. Ships Today. (34) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- In Stock Items, Including at a Supplier. Ships In a Few Days. (34) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- All Items, Including Not In Stock (37) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Filters
Make/Model
Section
Part Type
- Exhaust Systems (20) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Mufflers (15) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Catalytic Converters (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Headers (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Make/Engine
Price Range
Filter Options
- Circle Track (1)
- Stock Replacement (1)
Savings Central
- On Sale (35)
- Free Shipping (20)

2004 GMC Flowmaster Parts and Accessories

Individual Parts

Part Groups

Results 26 - 37 of 37

Flowmaster American Thunder Exhaust Systems 17328

Exhaust System, Force II, Cat-Back, Steel, Aluminized, Polished Tip, Chevy, GMC, Pickup, 6.0, 8.1L

Part Number: FLO-17328

4.39 out of 5 stars ( 18 )

Estimated Ship Date: Monday 3/9/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 3/9/2026 if shipped by air

Flowmaster Stainless Steel American Thunder Exhaust Systems 817328

Exhaust System, American Thunder, Cat-back, Single, Stainless, Side Exit, Chevy, GMC, 6.0L LS, 8.1L, Kit

Part Number: FLO-817328

4.73 out of 5 stars ( 11 )

Estimated Ship Date: Monday 3/9/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 3/9/2026 if shipped by air

Flowmaster 50 Series Heavy-Duty 409 Stainless Steel 3.5 Inch Muffler 853558

Muffler, 50 Series Heavy-Duty, Oval, Stainless, Black, 3.5 in. Offset Inlet/Outlet, 18 in. Case Length, Each

Part Number: FLO-853558

5.0 out of 5 stars ( 3 )

...Loading

Flowmaster 70 Series Big Block II Steel 3 Inch Muffler 53072

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 3/9/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 3/9/2026 if shipped by air

Flowmaster Scavenger Series Elite Headers 814123

Headers, Scavenger Series Elite, Shorty, Stainless, Polished Ceramic Coated, Cadillac, Chevy, GMC, Hummer, Pair

Part Number: FLO-814123

4.25 out of 5 stars ( 8 )

...Loading

Need It Sooner? We recommend these similar substitute parts:

JBA Performance Exhaust Cat4ward Headers 1850S-2JS

4.75 out of 5 stars ( 20 )

Estimated Ship Date: Monday 3/9/2026

...Loading

Flowmaster 50 Series Heavy-Duty Steel 3.5 Inch Muffler 953558

Muffler, Big Block, 50 Series, 3 1/2 in. Inlet/3 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-953558

4.44 out of 5 stars ( 9 )

...Loading

Flowmaster Force II Exhaust Systems 17362

Exhaust, Force II, Cat-Back, Steel, Aluminized, Polished Tip, Chevy, GMC, Pickup, 4.8, 5.3L

Part Number: FLO-17362

4.57 out of 5 stars ( 7 )

Estimated Ship Date: Monday 3/9/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 3/9/2026 if shipped by air

Flowmaster FlowFX Exhaust Systems 717924

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

Part Number: FLO-717924

Not Yet Reviewed

Estimated Ship Date: Monday 3/9/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 3/9/2026 if shipped by air

Flowmaster Stainless Steel American Thunder Exhaust Systems 817428

Exhaust System, American Thunder, Cat-Back, Stainless Steel, Polished Tip, 3-Door, Chevy, GMC, Kit

Part Number: FLO-817428

4.53 out of 5 stars ( 15 )

Estimated Ship Date: Monday 3/9/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 3/9/2026 if shipped by air

Flowmaster Force II Cat-Back Exhaust Systems for 2000-2006 TAHOE, YUKON - 817344

Exhaust System, Force III, Cat-back, Single, Stainless, Natural, Side Exit, Chevy, GMC, 4.8L LS, 5.3L LS, Kit

Part Number: FLO-817344

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 3/9/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 3/9/2026 if shipped by air

Flowmaster Stainless Steel American Thunder Exhaust Systems for 2001-2006 YUKON XL 1500, SUBURBAN 1500, 2002-2006 AVALANCHE 1500 - 817342

Exhaust System, American Thunder, Cat-back, Stainless, Natural, Split Rear Exit, Chevy, GMC, 5.3L, Kit

Part Number: FLO-817342

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/9/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 3/9/2026 if shipped by air

Flowmaster Stainless Steel American Thunder Exhaust Systems 817435

Exhaust System, American Thunder, Cat-Back, Stainless Steel, Chevy, GMC, 4.8, 5.3L, Kit

Part Number: FLO-817435

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/9/2026 if shipped by air

...Loading

Estimated Ship Date: Monday 3/9/2026 if shipped by air

Previous
Page 2 of 2