2003 GMC Exhaust Muffler Parts
Choose a Model for your 2003 GMC
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Product
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- Universal Performance Muffler - 2.5/2.5
- Universal Performance Muffler - 2.5/2.5
- Satin Finish Oval Exhaust Muffler
- Product Attributes:
- Muffler Type: Straight-through
- Exhaust Tip Quantity: 0
- Inlet Diameter: 2.5
- Outlet Inside Diameter: 2.5
- Body Width: 9
- Body Finish: Satin
- Inlet Inside Diameter: 2.5
- Body Height: 4
- Subtitle: Center/offset
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 2003 - GMC Sonoma | V | - | 6 Cyl 4.3L | 262 |
- DynoMax Super Turbo Muffler
- Universal; Oval; 4.25 in. x 9.75 in.; 3 in. And 2.5 in. ID; 13 in. Shell Length; 17 in Overall Length; No Flow Directors Under 8600 Gross Vehicle Weight~Dual Exhaust~Exits In Rear On Either Side Of License Plate
- DynoMax Super Turbo Muffler
- Super Turbo Muffler
-
Features:
- Exclusive Patented Flow Director Design Channels Exhaust Flow
- Eliminates Turbulence
- Large Internal Flow Tubes Improve Exhaust Flow
- Large Internal Flow Tubes Reduce Backpressure
- Fiberglass Matting Tech To Absorb Unwanted Interior Resonance
- Maintains A Mellow Performance Tone
- Dyno Proven To Flow Up To 700 SCFM/Support Up To 636 HP
- Proudly Manufactured In The USA
- Limited Lifetime Warranty
- DynoMax(R) Super Turbo(TM) performance mufflers exclusive patented flow director design channels exhaust flow and eliminates turbulence on most applications. The large internal flow tubes improve exhaust flow and reduce backpressure. Each muffler uses fiberglass matting technology to absorb unwanted interior resonance while maintaining a mellow performance tone. The 'Pure Unadulterated POWER' of DynoMax(R) Super Turbo(TM) mufflers are backed by a Limited Lifetime Warranty and exclusive 90-Day Performance & Sound Guarantee(TM).
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Sub Model | CID |
|---|---|---|---|---|---|
| 2003 - GMC Sierra 1500 | V | 5328 | 8 Cyl 5.3L | Base | 325 |
- DynoMax Super Turbo Muffler
- Universal; Oval; 4.25 in. x 9.75 in.; Side - Center; 2.5 in. ID; 14 in. Shell Length; 18.5 in. Overall Length w/Wide Stance Suspension Package
- DynoMax Super Turbo Muffler
- Super Turbo Muffler
-
Features:
- Exclusive Patented Flow Director Design Channels Exhaust Flow
- Eliminates Turbulence
- Large Internal Flow Tubes Improve Exhaust Flow
- Large Internal Flow Tubes Reduce Backpressure
- Fiberglass Matting Tech To Absorb Unwanted Interior Resonance
- Maintains A Mellow Performance Tone
- Dyno Proven To Flow Up To 700 SCFM/Support Up To 636 HP
- Proudly Manufactured In The USA
- Limited Lifetime Warranty
- DynoMax(R) Super Turbo(TM) performance mufflers exclusive patented flow director design channels exhaust flow and eliminates turbulence on most applications. The large internal flow tubes improve exhaust flow and reduce backpressure. Each muffler uses fiberglass matting technology to absorb unwanted interior resonance while maintaining a mellow performance tone. The 'Pure Unadulterated POWER' of DynoMax(R) Super Turbo(TM) mufflers are backed by a Limited Lifetime Warranty and exclusive 90-Day Performance & Sound Guarantee(TM).
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Drive Type | CID |
|---|---|---|---|---|---|
| 2003 - GMC Sonoma | V | - | 6 Cyl 4.3L | 4WD | 262 |
- DynoMax Ultra-Flo Welded Muffler
- Oval; 2.5 in. Inlet/Outlet; 4.5 in. H x 9.75 in. W x 14 in. Muffler L/19 in. Overall L; Offset/Center Reversible; Stainless Steel w/Wide Stance Suspension Package
- DynoMax Ultra Flo Welded Muffler
- Ultra Flo™ Welded Universal Muffler
-
Features:
- Constructed Using All 409 Stainless Steel
- 100% Welded Construction For Lifelong durability
- Unrestricted Straight-Through Design
- Dyno Proven To Flow Up To 2000 SCFM And Support Up To 2000 HP
- Exclusive Continuous Roving Fiberglass Technology
- CRF Technology Absorbs Unwanted Interior Resonance
- Maintains A Deep Performance Tone
- Straight-Through Design Ensures Unrestricted Exhaust Flow
- Reduces Back pressure
- Proudly Manufactured In The USA
- Limited Lifetime Warranty
- DynoMax(R) Ultra Flo(TM) Welded performance stainless steel mufflers feature 100-percent welded construction for lifelong durability. The unrestricted, straight-through design dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower. Each muffler uses our exclusive Continuous Roving Fiberglass (CRF) Technology to absorb unwanted interior resonance while maintaining a deep performance tone. The 'Pure Unadulterated POWER' of DynoMax(R) Ultra Flo(TM) Welded mufflers are backed by a Limited Lifetime Warranty and exclusive 90-Day Performance & Sound Guarantee(TM).
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Drive Type | CID |
|---|---|---|---|---|---|
| 2003 - GMC Sonoma | V | - | 6 Cyl 4.3L | 4WD | 262 |
- DynoMax Ultra-Flo Welded Muffler
- Round; 3 in. Inlet/Outlet; 6 in. H x 6 in. W x 16 in. Muffler L/21 in. Overall L; Center/Center; Reversible; Stainless Steel Under 8600 Gross Vehicle Weight~Ultra Flo Welded System~Single Exhaust
- DynoMax Ultra Flo Welded Muffler
- Ultra Flo™ Welded Universal Muffler
-
Features:
- Constructed Using All 409 Stainless Steel
- 100% Welded Construction For Lifelong durability
- Unrestricted Straight-Through Design
- Dyno Proven To Flow Up To 2000 SCFM And Support Up To 2000 HP
- Exclusive Continuous Roving Fiberglass Technology
- CRF Technology Absorbs Unwanted Interior Resonance
- Maintains A Deep Performance Tone
- Straight-Through Design Ensures Unrestricted Exhaust Flow
- Reduces Back pressure
- Proudly Manufactured In The USA
- Limited Lifetime Warranty
- DynoMax(R) Ultra Flo(TM) Welded performance stainless steel mufflers feature 100-percent welded construction for lifelong durability. The unrestricted, straight-through design dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower. Each muffler uses our exclusive Continuous Roving Fiberglass (CRF) Technology to absorb unwanted interior resonance while maintaining a deep performance tone. The 'Pure Unadulterated POWER' of DynoMax(R) Ultra Flo(TM) Welded mufflers are backed by a Limited Lifetime Warranty and exclusive 90-Day Performance & Sound Guarantee(TM).
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Sub Model | CID |
|---|---|---|---|---|---|
| 2003 - GMC Sierra 1500 | V | - | 6 Cyl 4.3L | SLT | 262 |
- DynoMax Ultra-Flo SS Muffler
- Universal; Oval; 3 in. Inlet/2.5 in. Outlet; 4.25 in. H x 9.75 in. W x 14 in. Muffler L/19 in. Overall L; Center/Offset; Reversible; Stainless Steel Under 8600 Gross Vehicle Weight~Super Turbo System~Dual Exhaust~Exits In Rear On Either Side Of License Plate
- DynoMax Ultra Flo SS Muffler
- Ultra Flo Muffler
-
Features:
- Constructed Using 304 Stainless Steel For Lifelong Durability
- Completely Polished For Show-Quality Shine
- Unrestricted Straight-Through Design
- Dyno Proven To Flow Up To 2000 SCFM And Support Up To 1900 HP
- Exclusive Continuous Roving Fiberglass Technology
- CRF Technology Absorbs Unwanted Interior Resonance
- Maintains A Deep Performance Tone
- Straight-Through Design Ensures Unrestricted Exhaust Flow
- Reduces Back pressure
- Limited Lifetime Warranty
- DynoMax(R) Ultra Flo(TM) SS Polished performance mufflers are constructed of stainless steel for lifelong durability and completely polished for show-quality shine. The unrestricted, straight-through design is dyno proven to flow up to 2,000 SCFM and support up to 1,900 horsepower. Each muffler uses our exclusive Continuous Roving Fiberglass (CRF) Technology to absorb unwanted interior resonance while maintaining a deep performance tone. The 'Pure Unadulterated POWER' of DynoMax(R) Ultra Flo(TM) SS Polished mufflers are backed by a Limited Lifetime Warranty and exclusive 90-Day Performance & Sound Guarantee(TM).
-
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Sub Model | CID |
|---|---|---|---|---|---|
| 2003 - GMC Sierra 1500 | V | - | 6 Cyl 4.3L | SL | 262 |
- Straight-Through Performance Muffler; 3in. Center/Center; 6x18x6 Body
- Magnaflow Straight-Through Performance Muffler; 3in. Center/Center; 6x18x6 Body
- Satin Finish 3x3in. Round Exhaust Muffler
- Product Attributes:
- Muffler Type: Straight-through
- Exhaust Tip Quantity: 0
- Body Width: 6
- Overall Length: 24
- Inlet Inside Diameter: 3
- Hanger Included: No
- Body Height: 6
- Body Material: Stainless Steel
- Outlet Quantity: 1
- Shape: Round
- Inlet Quantity: 1
- Outlet Inside Diameter: 3
- Inlet Type: Center
- Core Diameter: 3
- Reversible: Yes
- Outlet Type: Center
-
Features:
- Delivers a Smooth, Deep Tone
- 100% Stainless Steel
- Mufflers are Bi-Directional
- The MagnaFlow 6in. Round Straight-Through Performance Exhaust Muffler 12649 brings our world-famous exhaust sound and dyno-proven performance to your ride in a weight-optimized 6x6x18in. package with a premium satin finish. The straight-through free-flowing design of this round-bodied muffler's reversible, universal 3/3in. diameter inlet/outlet layout enables versatile installation options to match the spacing requirements of your vehicle. Due to the cutting and welding involved, professional installation is highly recommended. Internally, 12649 utilizes a perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill to achieve a powerful, resonant tone. This muffler is made of durable, corrosion resistant stainless steel and produced using cutting-edge CNC precision robotic manufacturing techniques, all backed by MagnaFlow's limited lifetime construction warranty.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 2003 - GMC Sierra 1500 | V | - | 8 Cyl 4.8L | 294 |
- Straight-Through Performance Muffler; 3in. Center/Center; 4x14x9 Body
- Magnaflow Straight-Through Performance Muffler; 3in. Center/Center; 4x14x9 Body
- Satin Finish 3x3in. Oval Exhaust Muffler
- Product Attributes:
- Muffler Type: Straight-through
- Exhaust Tip Quantity: 0
- Body Width: 9
- Overall Length: 20
- Inlet Inside Diameter: 3
- Hanger Included: No
- Body Height: 4
- Body Material: Stainless Steel
- Outlet Quantity: 1
- Shape: Oval
- Inlet Quantity: 1
- Outlet Inside Diameter: 3
- Inlet Type: Center
- Core Diameter: 3
- Reversible: Yes
- Outlet Type: Center
-
Features:
- Delivers a Smooth, Deep Tone
- 100% Stainless Steel
- Mufflers are Bi-Directional
- The MagnaFlow 4 X 9in. Oval Straight-Through Performance Exhaust Muffler 11219 is engineered to enhance your ride with a healthy helping of our signature exhaust sound and dyno-proven performance thanks to its free-flowing straight-through perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill. The reversible, universal 3/3in. diameter inlet/outlet Straight-Through layout allows you to install it in whatever orientation and configuration you see fit. However, professional installation is highly recommended. Muffler 11219s weight-optimized 4x9x14in. oval-shaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup. 11219 is made of durable, corrosion resistant stainless steel and produced using cutting-edge CNC precision robotic manufacturing techniques, all backed by MagnaFlow's limited lifetime construction warranty.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 2003 - GMC Sierra 1500 | V | - | 6 Cyl 4.3L | 262 |
- Straight-Through Performance Muffler; 2.5in. Center/Offset; 4x14x9 Body
- Magnaflow Straight-Through Performance Muffler; 2.5in. Center/Offset; 4x14x9 Body
- Satin Finish 2.5x2.5in. Oval Exhaust Muffler
- Product Attributes:
- Muffler Type: Straight-through
- Exhaust Tip Quantity: 0
- Body Width: 9
- Overall Length: 20
- Inlet Inside Diameter: 2.5
- Hanger Included: No
- Body Height: 4
- Body Material: Stainless Steel
- Outlet Quantity: 1
- Shape: Oval
- Inlet Quantity: 1
- Outlet Inside Diameter: 2.5
- Inlet Type: Center
- Core Diameter: 2.5
- Reversible: Yes
- Outlet Type: Offset
-
Features:
- Delivers a Smooth, Deep Tone
- 100% Stainless Steel
- Mufflers are Bi-Directional
- The MagnaFlow 4 X 9in. Oval Straight-Through Performance Exhaust Muffler 11226 is engineered to enhance your ride with a healthy helping of our signature exhaust sound and dyno-proven performance thanks to its free-flowing straight-through perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill. The reversible, universal 2.5/2.5in. diameter inlet/outlet Straight-Through layout allows you to install it in whatever orientation and configuration you see fit. However, professional installation is highly recommended. Muffler 11226s weight-optimized 4x9x14in. oval-shaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup. 11226 is made of durable, corrosion resistant stainless steel and produced using cutting-edge CNC precision robotic manufacturing techniques, all backed by MagnaFlow's limited lifetime construction warranty.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 2003 - GMC Sonoma | V | - | 6 Cyl 4.3L | 262 |
- Universal Performance Muffler - 3/3
- Universal Performance Muffler - 3/3
- Satin Finish Round Exhaust Muffler
- Product Attributes:
- Muffler Type: Straight-through
- Exhaust Tip Quantity: 0
- Inlet Diameter: 3
- Outlet Inside Diameter: 3
- Body Width: 6
- Body Finish: Satin
- Inlet Inside Diameter: 3
- Body Height: 6
- Subtitle: Center/center
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 2003 - GMC Sierra 1500 | V | - | 8 Cyl 4.8L | 294 |
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