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GMC K25 Muffler

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GMC K25 Muffler, Walker SoundFX Driver Side Muffler - Natural, Aluminized Steel, Direct Fit

$47.47 $74.12 You Save $26.65 (36%)
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WALKER – SOUNDFX MUFFLERS

Shape your exhaust tone just right with the aluminized tube-and-partition structure of Walker’s SoundFX mufflers. Established in 1908, Walker is renowned in the automotive aftermarket for manufacturing a full line of exhaust system parts.

  • Engineered with tube-and-partition structure
  • Manufactured with rust-resistant, aluminized steel
  • Heads are firmly spun-locked to protect against breakage
  • Built for OE-quality function and sound
  • Spot-welded bushings and internal mechanical joints increase stability
  • Quick and simple to install
  • Brand SKU#: Walker 18293
  • Location: Driver Side
  • Series: Walker SoundFX
  • Material: Aluminized Steel
  • Color/Finish: Natural
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Sound Level: Stock
  • Anticipated Ship Out Time: Same day - 1 business day
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Fits the following GMC K25 Years

  • 1976-1978 | Base | 8 Cyl 5.7L
  • 1976-1978 | High Sierra | 8 Cyl 5.7L
  • 1976-1978 | Sierra Classic | 8 Cyl 5.7L
  • 1976-1978 | Sierra Grande | 8 Cyl 5.7L
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GMC K25 Muffler, Heartthrob Exhaust Turbo Muffler - Natural, Aluminized Steel, Direct Fit

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$53.71 $63.38 You Save $9.67 (15%)
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Heartthrob Exhaust Turbo

The Heartthrob Exhaust Turbo Muffler is structured with a double-wrapped and welded shell to ensure adept noise tone down and guaranteed first-rate performance delivery. With the use of Heartthrob Exhaust's advanced technology, this Turbo component flags an exceptional rate on exhaust gas flow that in turn provides an empowered muffler function and increased engine operation speed. As the synchronized baffles and cores contribute to the excessive engine sound reduction, the aluminized steel-build reinforces optimum defense against corrosion and wear inducers. Heartthrob Exhaust grants you the privilege of experiencing the joys and thrill of having these Turbo mufflers installed onto your vehicle.

Features:

  • Available in oval-structured sizes of 5.5 x 11 and 4 x 9 in. and lengths of 14 and 18 in.
  • With reversible feature to handle custom installations
  • With a durable build of aluminized steel for absolute rust and wear protection
  • Precision-engineered with a twin-wrapped case to lessen overrated engine noise
  • Inclusive of dual baffles and cores (depending on applications)
  • Backed by a limited 1-year warranty for Heartthrob Exhaust Mufflers
  • Brand SKU#: Heartthrob Exhaust 437
  • Series: Heartthrob Exhaust Turbo
  • Material: Aluminized Steel
  • Color/Finish: Natural
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Sound Level: Stock
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Clamp-On
  • Case Shape: Oval
  • Inlet Location: Offset
  • Inlet Quantity: Single
  • Inlet Size: 2.25 in.
  • Internal Construction: Chambered and Louvered
  • Outlet Location: Offset
  • Outlet Quantity: Single
  • Outlet Size: 2.25 in.
  • Warranty: 1-year Heartthrob Exhaust warranty
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Fits the following GMC K25 Years

  • 1976-1977 | Base | 8 Cyl 7.4L
  • 1976-1977 | High Sierra | 8 Cyl 7.4L
  • 1976-1977 | Sierra Classic | 8 Cyl 7.4L
  • 1976-1977 | Sierra Grande | 8 Cyl 7.4L
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GMC K25 Muffler, Gibson Superflow Muffler - Natural, Aluminized Steel, Universal

$112.78 $152.87 You Save $40.09 (26%)
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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
  • Brand SKU#: Gibson 55131
  • Series: Gibson Superflow
  • Material: Aluminized Steel
  • Color/Finish: Natural
  • Product Fit: Universal
  • Quantity Sold: Sold Individually
  • Sound Level: Aggressive
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Clamp-On or Weld-On (Recommended)
  • Body Length: 13 in.
  • Case Shape: Oval
  • Height: 4 in.
  • Inlet Location: Offset
  • Inlet Quantity: Single
  • Inlet Size: 2.25 in.
  • Internal Construction: Baffled and Chambered
  • Outlet Location: Offset
  • Outlet Quantity: Single
  • Outlet Size: 2.25 in.
  • Overall Length: 13 in. (Body)
  • Tip Diameter: No Tips
  • Tip Finish: No Tips
  • Tip Material: No Tips
  • Warranty: Lifetime Gibson limited warranty
  • Width: 9 in.
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Fits the following GMC K25 Years

  • 1975-1978 | All Submodels | All Engines

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