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GMC K35 Muffler

We have 5 Items In-stock. Select a year to continue.
$47.37 List Price $68.14 Save $20.77 Availability: In Stock
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Walker's SoundFX mufflers feature a sophisticated pipe routing and tuning technology that provides better flow and favorable OE-style sound. Their all-aluminized construction provides longer service life and quality appearance.

Features:
  • OE-style sound
  • Aluminized steel muffler material

Specifications:

  • 21 in. L x 9.75 in. W x 4.25 in. H, 26.5 in. overall length
  • Single offset inlet and offset outlet configuration
  • 2.5 in. inlet diameter
  • 2.25 in. outlet diameter
  • Oval body shape
  • Modifications and/or additional parts required
  • SKU#: WK17845
  • Brand: Walker
  • Fit Note: 131.5 in. Wheelbase, Single Exhaust, 135.5 in. Wheelbase, Single Exhaust
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Sound Level: Stock
  • Recommended Use: OE Replacement
  • Anticipated Ship Out Time: Same day - 1 business day
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Fits the following GMC K35 Years:
  • 1977-1978 | 8 Cyl 5.7L | Base, High Sierra, Sierra Classic, Sierra Grande
$90.61 List Price $152.87 Save $62.26 Availability: In Stock
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GIBSON – SUPERFLOW MUFFLERS

Gibson’s Superflow mufflers are dyno-proven to dramatically increase the performance of your low to mid-range RPMs due to their Convergent Flow technology and straight design that makes exhaust flow more efficiently. Gibson is known as the leading manufacturer of street-legal, high performance exhaust systems for trucks, SUVs, diesels, off-road vehicles and RVs.

  • Most reliable, trouble-free and affordable muffler available - period
  • Deep, rich big block sound outside and relatively quiet interior
  • Convergent Flow Technology means dramatically more efficient exhaust flow
  • Baffled and chambered design means optimal volumetric efficiency
  • Features straight design which improves exhaust flow to increase torque and horsepower
  • Dyno-tested
  • Direct fit by vehicle year, make and model
  • Made in America
  • Makes significant improvements in low to mid-range
  • Comes in universal oval, round or in a race muffler style
  • SKU#: G2755131
  • Brand: Gibson
  • Product Fit: Universal
  • Quantity Sold: Sold Individually
  • Sound Level: Aggressive
  • Recommended Use: Performance
  • Anticipated Ship Out Time: Same day - 1 business day
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Fits the following GMC K35 Years:
  • 1977-1978 | All Engines | All Submodels
$57.04 List Price $113.96 Save $56.92 Availability: In Stock
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MUFFLER -- Stock Replacement, Original Equipment Quality, Sold Individually
  • SKU#: WK21784
  • Brand: Walker
  • Fit Note: Truck
  • Quantity Sold: Sold Individually
  • Sound Level: Stock
  • Anticipated Ship Out Time: Same day - 1 business day
 
Fits the following GMC K35 Years:
  • 1977-1978 | 6 Cyl 4.8L | Base, High Sierra, Sierra Classic, Sierra Grande
$49.67 List Price $73.82 Save $24.15 Availability: In Stock
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WALKER TRU-FIT MUFFLER

Walker's Tru-Fit muffler features a sophisticated pipe routing and tuning technology that provides better flow and favorable OE-style sound. Its all-aluminized construction provides longer service life and quality appearance.

Specifications
  • Aluminized steel muffler material
Features
  • OE-style sound
Notes
  • Tru-Fit muffler replaces muffler part number 21910
  • SKU#: WK18124
  • Brand: Walker
  • Fit Note: 131.5 in. Wheelbase, Single Exhaust, 135.5 in. Wheelbase, Single Exhaust
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Sound Level: Stock
  • Anticipated Ship Out Time: Same day - 1 business day
 
Fits the following GMC K35 Years:
  • 1977-1978 | 8 Cyl 5.7L | Base, High Sierra, Sierra Classic, Sierra Grande
$46.29 List Price $74.12 Save $27.83 Availability: In Stock
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WALKER SOUNDFX MUFFLER

Walker's SoundFX muffler features a sophisticated pipe routing and tuning technology that provides better flow and favorable OE-style sound. Its all-aluminized construction provides longer service life and quality appearance.

Specifications
  • Aluminized steel muffler material
Features
  • OE-style sound
  • SKU#: WK18293
  • Brand: Walker
  • Fit Note: 131.5 in. Wheelbase, Left/Right Hand, Dual Exhaust, 131.5 in. Wheelbase, 135.5 in. Wheelbase, Left/Right Hand, Dual Exhaust
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Sound Level: Stock
  • Anticipated Ship Out Time: Same day - 1 business day
 
Fits the following GMC K35 Years:
  • 1977-1978 | 8 Cyl 6.6L | Base, High Sierra, Sierra Classic, Sierra Grande