In Stock
- In Stock Items. Ships Today. (7) 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. (40) 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 (49) 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/Model
Part Type
- Mufflers (35) 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.
- Resonators (5) 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.
Brand
- AP Exhaust (17) 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.
- Walker Exhaust (9) 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.
- BRExhaust (8) 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.
- Flowmaster (6) 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
- Stock Replacement (26)
- Made In USA (2)
Savings Central
- Free Shipping (1)

Selected Filters

Availability

- In Stock Items. Ships Today. (7) 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. (40) 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 (49) 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
Part Type
- Mufflers (35) 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.
- Resonators (5) 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.
Brand
- AP Exhaust (17) 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.
- Walker Exhaust (9) 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.
- BRExhaust (8) 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.
- Flowmaster (6) 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
- Stock Replacement (26)
- Made In USA (2)
Savings Central
- Free Shipping (1)

2004 SUBARU Mufflers & Resonators

Showing In Stock Items. Show All 49 Items.

Individual Parts

Part Groups

Results 1 - 25 of 40

Flowmaster 40 Series Steel 2.25 Inch Muffler 42441

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

Part Number: FLO-42441

4.88 out of 5 stars ( 32 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster FlowFX 409 Stainless Steel 2.25 Inch Muffler 71225

Muffler, FlowFX Series, 2.25 in. Offset Inlet/2.25 in. Center Outlet, Stainless Steel, Natural, Each

Part Number: FLO-71225

4.58 out of 5 stars ( 26 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Super 44 Series Steel 2.25 Inch Muffler 942446

Muffler, Super 44 Series, 2.25 in. Inlet/2.25 in. Outlet, Steel, Black, Each

Part Number: FLO-942446

4.67 out of 5 stars ( 30 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster 40 Series Delta Flow Steel 2.25 Inch Muffler 942441

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

Part Number: FLO-942441

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Flowmaster Stainless Steel 40 Series 409 Stainless Steel 2.25 Inch Muffler 8042441

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: Today

...Loading

Estimated Ship Date: Today

Flowmaster Stainless Steel Super 44 Series 409 Stainless Steel 2.25 Inch Muffler 842446

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: Today

...Loading

Estimated Ship Date: Today

Walker 1.90 Inch Resonator 56044

Exhaust Resonator, Steel, Aluminized, Subaru, Each

Part Number: WLK-56044

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 4, 2026 if ordered today

...Loading

Estimated Ship Date: May 4, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

AP Exhaust Intermediate Pipes 68454

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026

...Loading

AP Exhaust - Mufflers for 2000-2004 LEGACY, OUTBACK - SU7205

Mufflers, Muffler - Center, ANSA OER

Part Number: APH-SU7205

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 29, 2026 if ordered today

Walker Replacement Steel 2 Inch Muffler 18922

Muffler, Replacement, Oval, Steel, Aluminized, 2.00 in. Offset Inlet, 2.00 in. Center Outlet, Subaru, Each

Part Number: WLK-18922

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

BRExhaust Direct-Fit Steel Inch Muffler 229-001

Mufflers, Direct-Fit, Single Inlet, 2.00 in. Single Outlet, Steel, Aluminized, Round Case, 44.25 in. Overall Length, Subaru, 2.5L, Each

Part Number: BRE-229-001

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

...Loading

Estimated Ship Date: May 4, 2026 if ordered today

Walker Quiet-Flow SS 409 Stainless Steel 2 Inch Muffler 54600

Muffler, Quiet-Flow SS, Oval, Stainless Steel, Natural, Offset Inlet, Center Outlet, Subaru, 2.5L, 3.0L, Each

Part Number: WLK-54600

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

...Loading

Estimated Ship Date: May 4, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

AP Exhaust OE Replacement Steel Inch Muffler 7480

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026

...Loading

Walker Quiet-Flow SS 409 Stainless Steel Inch Muffler 54601

Muffler, Quiet-Flow SS, Oval, Stainless Steel, Natural, Subaru, Each

Part Number: WLK-54601

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 4, 2026 if ordered today

...Loading

Estimated Ship Date: May 4, 2026 if ordered today

Walker Resonators for 2002-2005 IMPREZA, FORESTER, 2005 9-2X - 55363

Resonator, Steel, Natural, Subaru, Each

Part Number: WLK-55363

4.33 out of 5 stars ( 3 )

Estimated Ship Date: May 4, 2026 if ordered today

...Loading

Estimated Ship Date: May 4, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

AP Exhaust Intermediate Pipes 58474

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026

...Loading

BRExhaust Direct-Fit Exhaust Resonators for 2005-2006 9-2X, 2004-2008 FORESTER, 2002-2007 IMPREZA - 280-115

Exhaust Resonator and Pipe Assembly, Exhaust Resonator and Pipe Assembly

Part Number: BRE-280-115

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

...Loading

Estimated Ship Date: May 4, 2026 if ordered today

Walker Quiet-Flow SS 409 Stainless Steel 2 Inch Muffler 54563

Muffler, Quiet-Flow SS, Stainless Steel, Aluminized, Subaru, 2.5L, Each

Part Number: WLK-54563

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

...Loading

Estimated Ship Date: May 4, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

AP Exhaust OE Replacement Steel Inch Muffler 7491

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026

...Loading

Walker Direct-Fit SoundFX Steel 2 Inch Muffler 18967

Mufflers, Direct Fit SoundFX, Steel, Aluminized, 41.000 in. Overall Length, Subaru, 2.5L, 3.0L, Each

Part Number: WLK-18967

3.67 out of 5 stars ( 3 )

Estimated Ship Date: May 4, 2026 if ordered today

...Loading

Estimated Ship Date: May 4, 2026 if ordered today

AP Exhaust - Mufflers for 2004-2005 FORESTER - SU8807

Mufflers, Muffler - Rear, ANSA OER

Part Number: APH-SU8807

Not Yet Reviewed

Estimated Ship Date: Apr 28, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 28, 2026 if ordered today

AP Exhaust - Mufflers for 2003-2005 FORESTER, 2002-2005 IMPREZA - SU7405

Mufflers, Muffler - Center, ANSA OER

Part Number: APH-SU7405

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 27, 2026 if ordered today

AP Exhaust - Mufflers for 2000-2004 OUTBACK - SU7347

Mufflers, Muffler - Rear, ANSA OER

Part Number: APH-SU7347

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 27, 2026 if ordered today

BRExhaust Direct-Fit Steel 2 Inch Muffler 108-0093

Mufflers, Direct-Fit, 2.00 in. Inlet/Outlet, Steel, Aluminized, Subaru, Each

Part Number: BRE-108-0093

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

...Loading

Estimated Ship Date: May 4, 2026 if ordered today

AP Exhaust - Mufflers for 2000-2004 LEGACY - SU7207

Mufflers, Muffler - Rear, ANSA OER

Part Number: APH-SU7207

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 29, 2026 if ordered today

AP Exhaust - Mufflers for 2004-2005 FORESTER - SU8805

Mufflers, Muffler - Center, ANSA OER

Part Number: APH-SU8805

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 27, 2026 if ordered today

Walker 2 Inch Resonator 56243

Exhaust Resonator, Steel, Natural, 2.00 in. Inlet, 2.00 in. Outlet, 62.00 in. Length, Each

Part Number: WLK-56243

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 1, 2026 if ordered today

...Loading

Estimated Ship Date: May 1, 2026 if ordered today

BRExhaust Direct-Fit Steel 2 Inch Muffler 108-0086

Mufflers, Direct-Fit, 2.00 in. Inlet/Outlet, Steel, Aluminized, Subaru, 2.5L, 3.0L, Each

Part Number: BRE-108-0086

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

...Loading

Estimated Ship Date: May 4, 2026 if ordered today

BRExhaust Direct-Fit Steel Inch Muffler 229-073

Mufflers, Direct-Fit, Single Inlet, 3.00 in. Single Outlet, Steel, Aluminized, Round Case, 45.00 in. Overall Length, Saab, Subaru, Each

Part Number: BRE-229-073

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

...Loading

Estimated Ship Date: May 4, 2026 if ordered today

Page 1 of 2
Next