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Part #: 27263

Walker 27263 Exhaust Muffler

Quiet-Flow SS
⚙️ 90 vehicles fit this part
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📦Quiet-Flow SS
🚗Fitment: Chevrolet and GMC, Sierra 2500, Sierra 2500 HD, Sierra 3500, Sierra 3500 Classic, Silverado 2500, Silverado 2500 HD, Silverado 3500, and Silverado 3500 Classic
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Overview of Walker Quiet-Flow SS Exhaust Muffler 27263

The Walker Quiet-Flow SS Exhaust Muffler 27263 is designed for direct fit applications on Chevrolet and GMC heavy-duty trucks. Engineered with aluminized steel and a spun oval shape, this muffler offers reliable performance and durability for models like the Silverado 2500 HD and Sierra 3500 Classic.

  • Body dimensions: 24" length, 9" width, 7" height
  • Aluminized steel construction for corrosion resistance
  • Spun oval shape with boxed sound FX muffler design
  • Single outlet with 3" inside diameter and offset configuration
  • Dual 2.5" pipe connection inlets for secure fit
  • Direct fit for Chevrolet and GMC 2500 and 3500 series trucks

Detailed Product Features and Specifications

This Walker Quiet-Flow SS muffler (part number 27263) features a robust aluminized steel body that resists rust and extends service life. The muffler’s spun oval shape and boxed sound FX design help manage exhaust noise effectively while maintaining optimal exhaust flow. It measures 28" overall length with a 24" body length, 9" body width, and 7" body height, making it compatible with specific heavy-duty truck exhaust systems.

The muffler includes two 2.5" inside diameter pipe connection inlets and a single 3" outlet with an offset pipe connection, ensuring a precise fit and easy installation. This part is a direct fit replacement for Chevrolet Silverado 2500, Silverado 2500 HD, Silverado 3500, Silverado 3500 Classic, Sierra 2500, Sierra 2500 HD, Sierra 3500, and Sierra 3500 Classic models.

About the Walker Quiet-Flow SS Product Line

The Quiet-Flow SS line by Walker focuses on delivering mufflers that combine sound reduction with durability. Utilizing aluminized steel construction and advanced muffler designs like the boxed sound FX, this product line aims to provide a balance of noise control and long-lasting performance for heavy-duty truck applications.

Common Applications and Problem Solving

  • Reduces excessive exhaust noise in Chevrolet and GMC 2500/3500 trucks
  • Replaces corroded or damaged mufflers to restore exhaust system integrity
  • Improves exhaust flow and reduces backpressure for better engine performance
  • Prevents rust and corrosion with aluminized steel body
  • Ensures proper exhaust outlet alignment with offset pipe connection

Installation Notes and Tips

The Walker Quiet-Flow SS 27263 muffler is designed for direct fit installation on compatible Chevrolet and GMC heavy-duty trucks. Ensure the existing exhaust system matches the inlet and outlet pipe diameters (2.5" inlets, 3" outlet) before installation. Proper alignment of the offset outlet pipe connection is essential for a secure fit. Professional installation is recommended to maintain exhaust system integrity and performance.

Quality Assurance and Warranty

Walker manufactures the Quiet-Flow SS mufflers with high-quality aluminized steel to resist corrosion and wear. While specific warranty details are not provided here, Walker products typically meet industry standards for durability and performance. For warranty information, refer to Walker’s official documentation or contact the manufacturer directly.

BrandWalker
Part Number27263
PositionQuiet-Flow SS
Body Width9
Outlet Quantity1
ReversibleNo
Overall Length28
Body Height7
Body Length24
Body MaterialAluminized steel
Inlet 1 Inside Diameter2.5
Inlet 1 TypePipe connection
Inlet 2 Inside Diameter2.5
Inlet 2 TypePipe connection
Inlet QuantityYes & no
Muffler TypeBoxed sound fx muffler
Outlet 1 Inside Diameter3
Outlet ConfigurationPipe connection
Outlet OffsetYes
ShapeSpun oval
Universal Or Specific FitDirect fit

This part fits 90 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersWheel BasePositionNotes
2007ChevroletSilverado 3500 ClassicCab & Chassis6.0LV8133.0"N/AExcept Heavy Duty; Premium; with 2.5 (in) Muffler Inlet; Limited Lifetime Warranty; with Single Rear Wheels (SRW); If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2007ChevroletSilverado 3500 ClassicCab & Chassis8.1LV8133.0"N/AExcept Heavy Duty; Premium; with 2.5 (in) Muffler Inlet; Limited Lifetime Warranty; with Single Rear Wheels (SRW); If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2007GMCSierra 3500 ClassicCab & Chassis6.0LV8133.0"N/AExcept Heavy Duty; Premium; with 2.5 (in) Muffler Inlet; Limited Lifetime Warranty; with Single Rear Wheels (SRW); If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2007GMCSierra 3500 ClassicCab & Chassis8.1LV8133.0"N/AExcept Heavy Duty; Premium; with 2.5 (in) Muffler Inlet; Limited Lifetime Warranty; with Single Rear Wheels (SRW); If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006ChevroletSilverado 2500 HD6.0LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006ChevroletSilverado 2500 HD8.1LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006ChevroletSilverado 2500 HD8.1LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006ChevroletSilverado 2500 HD6.0LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006ChevroletSilverado 2500 HD6.0LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006ChevroletSilverado 2500 HD8.1LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006ChevroletSilverado 3500Standard Cab Pickup6.0LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with 9900 (lb) Gross Vehicle Weight (GVW); with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006ChevroletSilverado 3500Extended Cab Pickup6.0LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with 9900 (lb) Gross Vehicle Weight (GVW); with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006ChevroletSilverado 3500Standard Cab Pickup8.1LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with 9900 (lb) Gross Vehicle Weight (GVW); with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006ChevroletSilverado 3500Extended Cab Pickup8.1LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with 9900 (lb) Gross Vehicle Weight (GVW); with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006ChevroletSilverado 3500Crew Cab Pickup8.1LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with 9900 (lb) Gross Vehicle Weight (GVW); with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006ChevroletSilverado 3500Crew Cab Pickup6.0LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with 9900 (lb) Gross Vehicle Weight (GVW); with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006GMCSierra 2500 HD8.1LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006GMCSierra 2500 HD6.0LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006GMCSierra 2500 HD6.0LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006GMCSierra 2500 HD6.0LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006GMCSierra 2500 HD8.1LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006GMCSierra 2500 HD8.1LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006GMCSierra 3500Crew Cab Pickup6.0LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with 9900 (lb) Gross Vehicle Weight (GVW); with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006GMCSierra 3500Crew Cab Pickup8.1LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with 9900 (lb) Gross Vehicle Weight (GVW); with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006GMCSierra 3500Extended Cab Pickup8.1LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with 9900 (lb) Gross Vehicle Weight (GVW); with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006GMCSierra 3500Standard Cab Pickup6.0LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with 9900 (lb) Gross Vehicle Weight (GVW); with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006GMCSierra 3500Extended Cab Pickup6.0LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with 9900 (lb) Gross Vehicle Weight (GVW); with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2006GMCSierra 3500Standard Cab Pickup8.1LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with 9900 (lb) Gross Vehicle Weight (GVW); with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2005ChevroletSilverado 2500 HD6.0LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2005ChevroletSilverado 2500 HD8.1LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2005ChevroletSilverado 2500 HD8.1LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2005ChevroletSilverado 2500 HD6.0LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2005ChevroletSilverado 2500 HD6.0LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2005ChevroletSilverado 2500 HD8.1LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2005GMCSierra 2500 HD8.1LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2005GMCSierra 2500 HD6.0LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2005GMCSierra 2500 HD6.0LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2005GMCSierra 2500 HD6.0LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2005GMCSierra 2500 HD8.1LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2005GMCSierra 2500 HD8.1LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2004ChevroletSilverado 25006.0LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2004ChevroletSilverado 2500 HD6.0LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2004ChevroletSilverado 2500 HD8.1LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2004ChevroletSilverado 2500 HD8.1LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2004ChevroletSilverado 2500 HD6.0LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2004ChevroletSilverado 2500 HD6.0LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2004ChevroletSilverado 2500 HD8.1LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2004GMCSierra 25006.0LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2004GMCSierra 2500 HD8.1LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2004GMCSierra 2500 HD6.0LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2004GMCSierra 2500 HD6.0LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2004GMCSierra 2500 HD6.0LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2004GMCSierra 2500 HD8.1LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2004GMCSierra 2500 HD8.1LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2003ChevroletSilverado 2500 HD6.0LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2003ChevroletSilverado 2500 HD8.1LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2003ChevroletSilverado 2500 HD8.1LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2003ChevroletSilverado 2500 HD6.0LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2003ChevroletSilverado 2500 HD6.0LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2003ChevroletSilverado 2500 HD8.1LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2003GMCSierra 2500 HD8.1LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2003GMCSierra 2500 HD6.0LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2003GMCSierra 2500 HD6.0LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2003GMCSierra 2500 HD6.0LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2003GMCSierra 2500 HD8.1LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2003GMCSierra 2500 HD8.1LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2002ChevroletSilverado 2500 HD6.0LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2002ChevroletSilverado 2500 HD8.1LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2002ChevroletSilverado 2500 HD8.1LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2002ChevroletSilverado 2500 HD6.0LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2002ChevroletSilverado 2500 HD6.0LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2002ChevroletSilverado 2500 HD8.1LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2002GMCSierra 2500 HD8.1LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2002GMCSierra 2500 HD6.0LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2002GMCSierra 2500 HD6.0LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2002GMCSierra 2500 HD6.0LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2002GMCSierra 2500 HD8.1LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2002GMCSierra 2500 HD8.1LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2001ChevroletSilverado 2500 HD6.0LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2001ChevroletSilverado 2500 HD8.1LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2001ChevroletSilverado 2500 HD8.1LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2001ChevroletSilverado 2500 HD6.0LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2001ChevroletSilverado 2500 HD6.0LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2001ChevroletSilverado 2500 HD8.1LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2001GMCSierra 2500 HD8.1LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2001GMCSierra 2500 HD6.0LV8143.5"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2001GMCSierra 2500 HD6.0LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2001GMCSierra 2500 HD6.0LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2001GMCSierra 2500 HD8.1LV8153.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS
2001GMCSierra 2500 HD8.1LV8133.0"N/APremium; with 2.5 (in) Muffler Inlet; with Federal Emission System; except Low Emission Vehicle (LEV); Limited Lifetime Warranty; If welded assembly, replace all required parts; with Small Diameter Muffler; Use Reducer Bushing 41974 to connect with OE Converter Pipe; Quiet-Flow SS

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

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