2003 GMC Sierra 2500 Exhaust Muffler Parts

Choose your Submodel for your 2003 GMC Sierra 2500


Showing 1 - 5 of 5 products
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Dynomax
  • 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
  • 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 CID
2003 - GMC Sierra 2500 V 5967 8 Cyl 6.0L 364

Dynomax
  • 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
  • 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 CID
2003 - GMC Sierra 2500 V 5967 8 Cyl 6.0L 364

AP Exhaust
  • MSL Maxim
  • Extended Cab, Calif, 6.5' Bed, Inc. Exhaust Pipe, Muffler, Converter & Tail Pipe

Additional Fitment Information:
Vehicle Sub Model Body Drive Type
2003 - GMC Sierra 2500 SLE Extended Cab Pickup 4WD

Flowmaster
  • 50 Series™ Big Block Muffler
  • 3.0 in. Dual Inlet/3.5 in. Offset Outlet; Case Dimensions 5 in. x 12 in. x 22 in.; 28 in. Overall Length; Aluminized Steel Not Direct Fit-Some Adaptation Required
  • 50 Series™ Big Block Muffler; 3.0 in. Dual Inlet/3.5 in. Offset Outlet; Case Dimensions 5 in. x 12 in. x 22 in.; 28 in. Overall Length; Aluminized Steel;
  • 50 Series(TM) Big Block Muffler
  • Product Attributes:
    • Tip Quantity: 0
    • Automotive Item Grade: High Performance
    • Muffler Type: Reflection
    • Outlet Connection Type: Pipe
    • Outlet Position: Offset
    • Sound Level: Mild
    • WARNING CA Proposition 65: No
    • Fitment: Universal
    • Body Width: 12.000 In.
    • Muffler Series: 50 Series Big Block
    • Inlet Type: Dual
    • Inlet Position: Dual
    • Inlet Connection Type: Pipe
    • Outlet Type: Single Offset Outlet
  • Features:
    • Durable Fully Welded 16ga Aluminized Steel
    • 3 Year Limited Warranty
    • Stock to Mild Exterior Exhaust Tone
    • Reduced Interior Resonance
    • Improved HP/TQ and Potential Mileage Improvement
    • Race Proven Patented Delta Flow® Technology
    • Premium Flowmaster Quality
    • Recommended For SUV/Trucks/Motorhomes/Tow Vehicles
    • Minimal Interior Resonance
  • The 50 Series Big Block muffler is made for more than just big cubic inch engine applications. Its large case size with internal tuning chamber provides mileage and power gains along with maximum sound control for a quiet interior tone, even under heavy loads. Well suited to heavy duty vehicles such as full size trucks, SUV's, RVs, and tow vehicles. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

Additional Fitment Information:
Vehicle Block CC Engine CID
2003 - GMC Sierra 2500 V 5967 8 Cyl 6.0L 364

Flowmaster
  • 3.0 in. Dual Inlet/3.5 in. Offset Outlet; Case Dimensions 5 in. x 12 in. x 22 in.; 28 in. Overall Length; Aluminized Steel Not Direct Fit-Some Adaptation Required
  • 50 Series™ Big Block Muffler; 3.0 in. Dual Inlet/3.5 in. Offset Outlet; Case Dimensions 5 in. x 12 in. x 22 in.; 28 in. Overall Length; Aluminized Steel;
  • 50 Series™ Big Block Muffler
  • Product Attributes:
    • Tip Quantity: 0
    • Automotive Item Grade: High Performance
    • Muffler Type: Reflection
    • Outlet Connection Type: Pipe
    • Outlet Position: Offset
    • Sound Level: Mild
    • WARNING CA Proposition 65: No
    • Fitment: Universal
    • Body Width: 12.000 In.
    • Muffler Series: 50 Series Big Block
    • Inlet Type: Dual
    • Inlet Position: Dual
    • Inlet Connection Type: Pipe
    • Outlet Type: Single Offset Outlet
  • Features:
    • Durable Fully Welded 16ga Aluminized Steel
    • 3 Year Limited Warranty
    • Stock to Mild Exterior Exhaust Tone
    • Reduced Interior Resonance
    • Improved HP/TQ and Potential Mileage Improvement
    • Race Proven Patented Delta Flow® Technology
    • Premium Flowmaster Quality
    • Recommended For SUV/Trucks/Motorhomes/Tow Vehicles
    • Minimal Interior Resonance
  • The 50 Series Big Block muffler is made for more than just big cubic inch engine applications. Its large case size with internal tuning chamber provides mileage and power gains along with maximum sound control for a quiet interior tone, even under heavy loads. Well suited to heavy duty vehicles such as full size trucks, SUV's, RVs, and tow vehicles. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

Additional Fitment Information:
Vehicle Block CC Engine CID
2003 - GMC Sierra 2500 V 5967 8 Cyl 6.0L 364
Showing 1 - 5 of 5 products

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