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GMC S15 Replacement Muffler Information
Search our online muffler catalog and find the lowest priced discount auto parts on the web. We sell wholesale to the public. We offer high quality new, OEM, aftermarket and remanufactured GMC S15 Muffler parts. We specialize in a wide-variety of high-quality car parts and accessories for your car, truck or SUV. Call toll free to order or place your order online via our secure checkout system. Our online parts catalog uses real-time inventory, so you can be assured the parts you buy are in stock at the time of ordering. Most orders are shipped the same day. They are available for the following GMC S15 years: 1990, 1989, 1988, 1987, 1986, 1985, 1984, 1983, 90, 89, 88, 87, 86, 85, 84, 83. This part is also sometimes called GMC S15 Mufflers. We stock muffler parts for most GMC models including Jimmy, Envoy, C1500, Sierra 1500, Safari, Sonoma, K1500 Suburban, K1500, Yukon, K2500, Sierra 2500, G2500, C2500, Sierra 1500 HD, Savana 2500, Savana 1500, G3500, G1500, S15 Jimmy, Sierra 2500 HD, Yukon XL 1500, Canyon, Savana 3500, C1500 Suburban, Sierra 3500, C3500, K3500, K2500 Suburban, C2500 Suburban, C15, Caballero, C15/C1500 Pickup, P3500, V3500, V1500 Suburban, K15, R3500, R1500 Suburban, V1500 and K25.
We stock these Muffler brands for the GMC S15: Walker, Flowmaster and Dorman.

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Product SKU: 17800
Product Note: Exhaust Muffler -- Muffler; SoundFX; Universal; Optional; Universal SoundFX Muffler for 22500; 4 WHEEL DRIVE; Modifications and/or additional parts required
Inventory: In Stock
Condition: New
Shipping Options: Ground
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| Additional Fitment Information: |
Warehouse: B |
| Vehicle |
Sub Model |
Engine |
| • 1990 (90) GMC S15 |
Base |
2.8L V6 VIN: R FI Naturally Aspirated GAS |
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Product SKU: 18107
Product Note: Exhaust Muffler -- Muffler; Tru-Fit; Universal; Optional; Tru Fit Muffler for 22500; 4 WHEEL DRIVE; Requires 35003 Bracket.; Requires 41740 Spout & 35408 (2[in]) Clamp.
Features:
- Aluminized cover and heads
- Tube and partition interior design provides easy, economical silencing
- Easy-fit kits and parts allow installation with basic hand tools
- Limited lifetime warranty
Inventory: In Stock
Condition: New
Shipping Options: Ground
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| Additional Fitment Information: |
Warehouse: B |
| Vehicle |
Sub Model |
Engine |
| • 1989 (89) GMC S15 |
Base |
2.8L V6 VIN: R FI Naturally Aspirated GAS |
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|

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Product SKU: 18187
Product Note: Exhaust Muffler -- Muffler; SoundFX; Optional; SoundFX Muffler for 22500; 2 WHEEL DRIVE
Inventory: In Stock
Condition: New
Shipping Options: Ground
|
| Additional Fitment Information: |
Warehouse: B |
| Vehicle |
Sub Model |
Engine |
| • 1988 (88) GMC S15 |
Base |
2.5L 4 Cyl VIN: E FI Naturally Aspirated GAS |
|
|


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Image is not vehicle specific
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Your Price: $77.50
with FREE Shipping
Product SKU: 42441
Product Note: 40 Series(TM); 2.25 in. Offset Inlet / Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; Aluminized Steel;
Features:
- 3 Year Limited Warranty
- Aggressive And Powerful Exterior Exhaust Tone
- Durable Fully Welded 16ga Aluminized Steel
- Excellent Street/Strip And Off Road Application
- No Internal Packing To Blowout
- Notable Interior Resonance
- The Original Two Chamber Design
- www.Flowmastermufflers.com
Inventory: In Stock
Condition: New
Shipping Options: Free Ground Shipping
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| Additional Fitment Information: |
Warehouse: F |
| Vehicle |
| • 1987 (87) GMC S15 |
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(Read reviews)
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Your Price: $82.99
with FREE Shipping
Product SKU: 8042441
Product Note: 40 Series(TM); 2.25 in. Offset Inlet / Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; 409S Stainless Steel;
Features:
- 3 Year Limited Warranty
- 409S Stainless Steel
- Aggressive And Powerful Exterior Exhaust Tone
- Excellent Street/Strip And Off Road Application
- No Internal Packing To Blowout
- Notable Interior Resonance
- The Original Two Chamber Design
- www.Flowmastermufflers.com
Inventory: In Stock
Condition: New
Shipping Options: Free Ground Shipping
|
| Additional Fitment Information: |
Warehouse: F |
| Vehicle |
| • 1986 (86) GMC S15 |
|
|

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(Read reviews)
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Product SKU: 35281
Product Note: Exhaust Spring -- Spring; 2 WHEEL DRIVE; Two Per Box
Inventory: In Stock
Condition: New
Shipping Options: Ground
|
| Additional Fitment Information: |
Warehouse: B |
| Vehicle |
Sub Model |
Engine |
| • 1985 (85) GMC S15 |
Base |
1.9L 4 Cyl VIN: A CARB Naturally Aspirated GAS |
|
|

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(Read reviews)
|
Product SKU: 17800
Product Note: Exhaust Muffler -- Muffler; SoundFX; Universal; Optional; Universal SoundFX Muffler for 22500; 4 WHEEL DRIVE; Modifications and/or additional parts required
Inventory: In Stock
Condition: New
Shipping Options: Ground
|
| Additional Fitment Information: |
Warehouse: B |
| Vehicle |
Sub Model |
Engine |
| • 1984 (84) GMC S15 |
Base |
1.9L 4 Cyl VIN: A CARB Naturally Aspirated GAS |
|
|

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(Read reviews)
|
Product SKU: 17800
Product Note: Exhaust Muffler -- Muffler; SoundFX; Universal; Optional; Universal SoundFX Muffler for 22500; 4 WHEEL DRIVE; Modifications and/or additional parts required
Inventory: In Stock
Condition: New
Shipping Options: Ground
|
| Additional Fitment Information: |
Warehouse: B |
| Vehicle |
Sub Model |
Engine |
| • 1983 (83) GMC S15 |
Base |
1.9L 4 Cyl VIN: A CARB Naturally Aspirated GAS |
|
|

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(Read reviews)
|
Product SKU: 17800
Product Note: Exhaust Muffler -- Muffler; SoundFX; Universal; Optional; Universal SoundFX Muffler for 22500; Modifications and/or additional parts required
Inventory: In Stock
Condition: New
Shipping Options: Ground
|
| Additional Fitment Information: |
Warehouse: B |
| Vehicle |
Sub Model |
Engine |
| • 1982 (82) GMC S15 |
Base |
1.9L 4 Cyl VIN: A CARB Naturally Aspirated GAS |
|
|

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(Read reviews)
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Product SKU: 03084
Product Note: Exhaust Spring -- ASSORTMENT
Inventory: In Stock
Condition: New
Shipping Options: Ground
|
| Additional Fitment Information: |
Warehouse: C |
| Vehicle |
Engine |
| • 1990 (90) GMC S15 |
2.8L V6 |
|
|


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(Read reviews)
|
Your Price: $82.99
with FREE Shipping
Product SKU: 8042441
Product Note: 40 Series(TM); 2.25 in. Offset Inlet / Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; 409S Stainless Steel;
Features:
- 3 Year Limited Warranty
- 409S Stainless Steel
- Aggressive And Powerful Exterior Exhaust Tone
- Excellent Street/Strip And Off Road Application
- No Internal Packing To Blowout
- Notable Interior Resonance
- The Original Two Chamber Design
- www.Flowmastermufflers.com
Inventory: In Stock
Condition: New
Shipping Options: Free Ground Shipping
|
| Additional Fitment Information: |
Warehouse: F |
| Vehicle |
| • 1990 (90) GMC S15 |
|
|

Click to Enlarge
(Read reviews)
|
Product SKU: 35281
Product Note: Exhaust Spring -- Spring; 2 WHEEL DRIVE; Two Per Box
Inventory: In Stock
Condition: New
Shipping Options: Ground
|
| Additional Fitment Information: |
Warehouse: B |
| Vehicle |
Sub Model |
Engine |
| • 1990 (90) GMC S15 |
Base |
2.5L 4 Cyl VIN: E FI Naturally Aspirated GAS |
|
|

Click to Enlarge
(Read reviews)
|
Product SKU: 03084
Product Note: Exhaust Spring -- ASSORTMENT
Inventory: In Stock
Condition: New
Shipping Options: Ground
|
| Additional Fitment Information: |
Warehouse: C |
| Vehicle |
Engine |
| • 1989 (89) GMC S15 |
2.8L V6 |
|
|


Click to Enlarge

Click to Enlarge
(Read reviews)
|
Your Price: $82.99
with FREE Shipping
Product SKU: 8042441
Product Note: 40 Series(TM); 2.25 in. Offset Inlet / Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; 409S Stainless Steel;
Features:
- 3 Year Limited Warranty
- 409S Stainless Steel
- Aggressive And Powerful Exterior Exhaust Tone
- Excellent Street/Strip And Off Road Application
- No Internal Packing To Blowout
- Notable Interior Resonance
- The Original Two Chamber Design
- www.Flowmastermufflers.com
Inventory: In Stock
Condition: New
Shipping Options: Free Ground Shipping
|
| Additional Fitment Information: |
Warehouse: F |
| Vehicle |
Engine |
| • 1989 (89) GMC S15 |
4.3L V6 |
|
|

Click to Enlarge
(Read reviews)
|
Product SKU: 35281
Product Note: Exhaust Spring -- Spring; 2 WHEEL DRIVE; Two Per Box
Inventory: In Stock
Condition: New
Shipping Options: Ground
|
| Additional Fitment Information: |
Warehouse: B |
| Vehicle |
Sub Model |
Engine |
| • 1989 (89) GMC S15 |
Base |
2.5L 4 Cyl VIN: E FI Naturally Aspirated GAS |
|
|
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Some of our Customer Reviews
Very Satisfied
Reviewer: MikeLynch
10/13/09 03:57 PMThe order arrive FAST and everything was shipped in the one package. The price was competitive with others and your inventory is impressive. I will buy from the Geeks again.
Order Date | 10/6/09
Very Satisfied
Reviewer: bonecarp
1/17/09 10:46 PMI ordered my part on Sun. on Internet and had it arrive on Thurs.--even with cheapest land shipping-very reasonable. The part was $20-$50
cheaper than anywhere else on the internet. The part was new and perfect fit. I will definitely
order again.
Order Date | 1/10/09