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<< Back - 1981 > Chevrolet > K20 > Exhaust > Muffler

1981 Chevrolet K20 Muffler


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Walker Muffler
Sale Price: $37.23
(7) In Stock
Part Number: 3407-05073895
Notes: Walker SoundFX Direct Fit Muffler -- w/ Single Catalytic Converter; w/ Conv.; Dual Outlet
Features:
  • Reinforced bracketed heads improve structural support and stability
  • Mechanical joints end spot weld breakage and flow tube buckling
  • Spot-welded bushings for greater stability and assembly support
  • 180║ double-wrapped cover and shell enhance performance and durability
  • Spun-locked heads resist backfire and exhaust gas leakage
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: B
Vehicle Engine Wheel Base
• 1981 Chevrolet K20 5.7L V8  131.5 


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Walker 18274
Muffler
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Walker Muffler
Sale Price: $35.23
(>35) In Stock
Part Number: 3407-05073948
Notes: Walker SoundFX Direct Fit Muffler -- w/ Single Catalytic Converter; w/ Conv.; Optional; SoundFX for 21910
Features:
  • Better resistance to exhaust leakage
  • Limited lifetime warranty
  • Great sound quality
  • Reinforced, bracketed heads provide greater support
  • Better resistance to backfire
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: B
Vehicle Engine Wheel Base
• 1981 Chevrolet K20 5.7L V8  131.5 


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Walker 18274
Muffler
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Walker Muffler
Sale Price: $35.23
(>35) In Stock
Part Number: 3407-05073948
Notes: Walker SoundFX Direct Fit Muffler -- w/o Conv.; Do Not Use w/ Fed. Emiss. Control or H5D Emiss.; Optional; SoundFX for 21910
Features:
  • Better resistance to exhaust leakage
  • Limited lifetime warranty
  • Great sound quality
  • Reinforced, bracketed heads provide greater support
  • Better resistance to backfire
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: B
Vehicle Engine Wheel Base
• 1981 Chevrolet K20 4.8L 6 Cyl  131.5 


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Walker 18274
Muffler
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Walker Muffler
Sale Price: $35.23
(>35) In Stock
Part Number: 3407-05073948
Notes: Walker SoundFX Direct Fit Muffler -- w/o Converter; Do Not Use w/ Fed. Emiss. Control or H5D Emiss.; Single Outlet; Optional; SoundFX for 21910
Features:
  • Better resistance to exhaust leakage
  • Limited lifetime warranty
  • Great sound quality
  • Reinforced, bracketed heads provide greater support
  • Better resistance to backfire
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: B
Vehicle Engine Wheel Base
• 1981 Chevrolet K20 5.7L V8  131.5 


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Walker Muffler
Sale Price: $33.23
(3) In Stock
Part Number: 3407-05215872
Notes: Walker SoundFX Universal Muffler -- w/ Single Catalytic Converter; w/ Conv.; Dual Outlet; Optional; SoundFX Universal for 18191
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: B
Vehicle Engine Wheel Base
• 1981 Chevrolet K20 5.7L V8  131.5 


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Walker Muffler
Sale Price: $33.23
(2) In Stock
Part Number: 3407-05305518
Notes: Walker SoundFX Universal Muffler -- w/ Single Catalytic Converter; w/ Conv.; Optional; SoundFX Universal for 21910
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: B
Vehicle Engine Wheel Base
• 1981 Chevrolet K20 5.7L V8  131.5 


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Walker Muffler
Sale Price: $33.23
(2) In Stock
Part Number: 3407-05305518
Notes: Walker SoundFX Universal Muffler -- w/o Conv.; Do Not Use w/ Fed. Emiss. Control or H5D Emiss.; Optional; SoundFX Universal for 21910
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: B
Vehicle Engine Wheel Base
• 1981 Chevrolet K20 4.8L 6 Cyl  131.5 


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Walker Muffler
Sale Price: $33.23
(2) In Stock
Part Number: 3407-05305518
Notes: Walker SoundFX Universal Muffler -- w/o Converter; Do Not Use w/ Fed. Emiss. Control or H5D Emiss.; Single Outlet; Optional; SoundFX Universal for 21910
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: B
Vehicle Engine Wheel Base
• 1981 Chevrolet K20 5.7L V8  131.5 


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Walker Muffler
Sale Price: $35.23
(3) In Stock
Part Number: 3407-05073880
Notes: Walker Tru-Fit Universal Muffler -- w/ Single Catalytic Converter; w/ Conv.; Dual Outlet; Optional; Tru-Fit for 18191; Single Outlet Replaces Dual
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: B
Vehicle Engine Wheel Base
• 1981 Chevrolet K20 5.7L V8  131.5 


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Walker Muffler
Sale Price: $35.23
(5) In Stock
Part Number: 3407-05073860
Notes: Walker Tru-Fit Universal Muffler -- w/ Single Catalytic Converter; w/ Conv.; Optional; Tru-Fit for 21910
Features:
  • Tube-and-partition interior design provides easy, economical silencing
  • Features aluminized cover, heads and bushings
  • Engineered to high standards
  • Assured high quality and dependability
  • Tested under extreme conditions
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: B
Vehicle Engine Wheel Base
• 1981 Chevrolet K20 5.7L V8  131.5 


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Walker Muffler
Sale Price: $35.23
(5) In Stock
Part Number: 3407-05073860
Notes: Walker Tru-Fit Universal Muffler -- w/o Conv.; Do Not Use w/ Fed. Emiss. Control or H5D Emiss.; Optional; Tru-Fit for 21910
Features:
  • Tube-and-partition interior design provides easy, economical silencing
  • Features aluminized cover, heads and bushings
  • Engineered to high standards
  • Assured high quality and dependability
  • Tested under extreme conditions
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: B
Vehicle Engine Wheel Base
• 1981 Chevrolet K20 4.8L 6 Cyl  131.5 


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Walker Muffler
Sale Price: $35.23
(5) In Stock
Part Number: 3407-05073860
Notes: Walker Tru-Fit Universal Muffler -- w/o Converter; Do Not Use w/ Fed. Emiss. Control or H5D Emiss.; Single Outlet; Optional; Tru-Fit for 21910
Features:
  • Tube-and-partition interior design provides easy, economical silencing
  • Features aluminized cover, heads and bushings
  • Engineered to high standards
  • Assured high quality and dependability
  • Tested under extreme conditions
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: B
Vehicle Engine Wheel Base
• 1981 Chevrolet K20 5.7L V8  131.5 



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Dynomax Muffler - Super Turbo Direct Fit - Direct-Fit - Oval - 4.25 in. x 9.75 in. - 2.5 in. ID - 20 in. Shell Length - 25.5 in. Overall Length;
Sale Price: $84.25
(4) In Stock
Part Number: 3407-03269714
Notes: Super Turbo Direct Fit; Direct-Fit; Oval; 4.25 in. x 9.75 in.; 2.5 in. ID; 20 in. Shell Length; 25.5 in. Overall Length;
Detailed Notes: Intermediate Pipe Required To Complete Installation~ Stock Replacement Pipe Is Not Included In Kit
Features:
  • Dyno Proven To Flow Up To 700 SCFM/Support Up To 636 HP
  • Eliminates Turbulence
  • Exclusive Patented Flow Director Design Channels Exhaust Flow
  • Fiberglass Matting Tech To Absorb Unwanted Interior Resonance
  • Large Internal Flow Tubes Improve Exhaust Flow
  • Large Internal Flow Tubes Reduce Backpressure
  • Maintains A Mellow Performance Tone
  • Proudly Manufactured In The USA
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: F
Vehicle Engine
• 1981 Chevrolet K20 5.7L V8 



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Flowmaster Muffler - 40 Series(TM) Delta Flow - 2.5 in. Center Inlet / 2 in. Dual Outlet - Case Dimensions 4 in. x 9.75 in. x 13 in. - 19 in. Overall Length - Aluminized Steel;
Sale Price: $89.99
with FREE Shipping
(3) In Stock
Part Number: 3407-03159675
Notes: 40 Series(TM) Delta Flow; 2.5 in. Center Inlet / 2 in. Dual Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; Aluminized Steel;
Features:
  • 3 Year Limited Warranty
  • Aggressive To Moderate Exterior Exhaust Note
  • Durable Fully Welded 16ga Aluminized Steel
  • Excellent Street/Strip And Off Road Application
  • No Internal Packing To Blowout
  • Premium Flowmaster Quality
  • Race Proven Patented Delta Flow┬« Technology
  • Reduced Interior Resonance
Condition: New

Shipping Options:
Free Ground Shipping

This Product Fits the Following: Warehouse: F
Vehicle Engine
• 1981 Chevrolet K20 5.7L V8 



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Flowmaster Muffler - 40 Series(TM) Delta Flow - 2.5 in. Offset Inlet / 2.5 in. Opposite Side Offset Outlet - Case Dimensions 4 in. x 9.75 in. x 13 in. - 19 in. Overall Length - Aluminized Steel;
Sale Price: $89.99
with FREE Shipping
(13) In Stock
Part Number: 3407-03339167
Notes: 40 Series(TM) Delta Flow; 2.5 in. Offset Inlet / 2.5 in. Opposite Side Offset Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; Aluminized Steel;
Features:
  • 3 Year Limited Warranty
  • Durable Fully Welded 16ga Aluminized Steel
  • Excellent Choice For Street Rods Cars and Trucks
  • Improved HP/TQ and Potential Mileage Improvement
  • Mild to Moderate Exterior Exhaust Tone
  • Minimal Interior Resonance
  • Premium Flowmaster Quality
  • Race Proven Patented Delta Flow┬« Technology
Condition: New

Shipping Options:
Free Ground Shipping

This Product Fits the Following: Warehouse: F
Vehicle Engine
• 1981 Chevrolet K20 5.7L V8 



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Flowmaster Muffler - 50 Series(TM) Delta Flow - 2.5 in. Center Inlet / 2 in. Dual Outlet - Case Dimensions 4 in. x 9.75 in. x 17 in. - 23 in. Overall Length - Aluminized Steel;
Sale Price: $101.99
with FREE Shipping
(>15) In Stock
Part Number: 3407-03159680
Notes: 50 Series(TM) Delta Flow; 2.5 in. Center Inlet / 2 in. Dual Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel;
Features:
  • 3 Year Limited Warranty
  • Durable Fully Welded 16ga Aluminized Steel
  • Excellent Choice For Street Rods Cars and Trucks
  • Improved HP/TQ and Potential Mileage Improvement
  • Mild to Moderate Exterior Exhaust Tone
  • Minimal Interior Resonance
  • Premium Flowmaster Quality
  • Race Proven Patented Delta Flow┬« Technology
Condition: New

Shipping Options:
Free Ground Shipping

This Product Fits the Following: Warehouse: F
Vehicle Engine
• 1981 Chevrolet K20 5.7L V8 



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Flowmaster Muffler - Super 40(TM) Delta Flow - 3 in. Center Inlet / 2.5 in. Dual Outlet - Case Dimensions 5 in. x 10 in. x 13.5 in. - 17.5 in. Overall Length - 409S Stainless Steel;
Sale Price: $90.90
with FREE Shipping
(9) In Stock
Part Number: 3407-03217350
Notes: Super 40(TM) Delta Flow; 3 in. Center Inlet / 2.5 in. Dual Outlet; Case Dimensions 5 in. x 10 in. x 13.5 in.; 17.5 in. Overall Length; 409S Stainless Steel;
Features:
  • Deep Aggressive to Moderate Exhaust Note
  • Durable Fully Welded 16ga Stainless Steel
  • Excellent Performance On High Horsepower Vehicles
  • Limited Lifetime Warranty
  • Moderate Interior Resonance
  • No Internal Packing To Blowout
  • Premium Flowmaster Quality
  • Race Proven Patented Delta Flow┬« Technology
Condition: New

Shipping Options:
Free Ground Shipping

This Product Fits the Following: Warehouse: F
Vehicle Engine
• 1981 Chevrolet K20 5.7L V8 


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Walker Muffler
Sale Price: $60.23

Out of Stock
Part Number: 3407-05104187
Notes: Exhaust Muffler -- Muffler; Quiet-Flow; 131.5 Inch W.B.; Do Not Use w/ Fed. Emiss. Control or H5D Emissions; w/o Converter
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: B
Vehicle Sub Model Engine
• 1981 Chevrolet K20 Custom  5.7L V8 VIN: L CARB Naturally Aspirated GAS 
• 1981 Chevrolet K20 Custom  5.7L V8 VIN: M CARB Naturally Aspirated GAS 
• 1981 Chevrolet K20 Deluxe  5.7L V8 VIN: L CARB Naturally Aspirated GAS 
• 1981 Chevrolet K20 Deluxe  5.7L V8 VIN: M CARB Naturally Aspirated GAS 


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Walker Muffler
Sale Price: $60.23

Out of Stock
Part Number: 3407-05104187
Notes: Exhaust Muffler -- Muffler; Quiet-Flow; 131.5 Inch W.B.; w/ Converter
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: B
Vehicle Sub Model Engine
• 1981 Chevrolet K20 Custom  5.7L V8 VIN: L CARB Naturally Aspirated GAS 
• 1981 Chevrolet K20 Custom  5.7L V8 VIN: M CARB Naturally Aspirated GAS 
• 1981 Chevrolet K20 Deluxe  5.7L V8 VIN: L CARB Naturally Aspirated GAS 
• 1981 Chevrolet K20 Deluxe  5.7L V8 VIN: M CARB Naturally Aspirated GAS 


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Walker Muffler
Sale Price: $60.23

Out of Stock
Part Number: 3407-05104187
Notes: Exhaust Muffler -- Muffler; Quiet-Flow; 131.5 Inch, 164.5 Inch W.B.; Do Not Use w/ Fed. Emiss. Control or H5D Emissions; w/o Converter
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: B
Vehicle Sub Model Engine
• 1981 Chevrolet K20 Custom  4.8L 6 Cyl VIN: T CARB Naturally Aspirated GAS 
• 1981 Chevrolet K20 Deluxe  4.8L 6 Cyl VIN: T CARB Naturally Aspirated GAS 

5 stars - (1 Reviews)
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